# B.

> District Court, N.D. California · June 29, 2026

URL: https://www.frixlaw.com/law-library/cases/11380601

## Case

- **Full name:** M. B. v. City and County of San Francisco, et al.
- **Court:** District Court, N.D. California
- **Decided:** June 29, 2026
- **Opinion:** 100trialcourt
- **Cited by:** 0 later opinions in the Frix Law Library

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## Opinion text

UNITED STATES DISTRICT COURT
NORTHERN DISTRICT OF CALIFORNIA

M. B., Case No. 24-cv-00301-RFL

Plaintiff,
ORDER RE MOTIONS FOR
v. SUMMARY JUDGMENT

CITY AND COUNTY OF SAN Re: Dkt. Nos. 110, 113
FRANCISCO, et al.,
Defendants.

I. INTRODUCTION
Plaintiff M.B., a twenty-year-old formerly under the jurisdiction of the San Francisco
Juvenile Court and confined in San Francisco Juvenile Hall (“SFJH”), filed suit against
Defendants City and County of San Francisco, Bryan Thomasson, and other employees of the
City, County, and the San Francisco Juvenile Probation Department. M.B. alleges that from
December 21, 2022, to December 24, 2022, Defendants held him in solitary confinement for a
total of three days in violation of his rights under both federal and state law. (Dkt. No. 18.) Both
parties move for summary judgment. (Dkt. Nos. 110, 113.) For the reasons that follow, M.B.’s
motion is DENIED, and Defendants’ motion is GRANTED IN PART AND DENIED IN
PART.
II. BACKGROUND
A. Undisputed Facts
M.B. was transferred to SFJH from San Mateo Juvenile Hall in Spring 2022, having
previously been adjudicated delinquent and sentenced to four years of confinement in 2020.
(Dkt. No. 113-3 (“M.B. Dep.”) at 69:12–76:3.)1 On December 21, 2022, Defendants received an
anonymous tip that M.B. was in possession of a cell phone, pills, a laptop, and other items that
constituted major contraband. (Dkt. No. 113-6 (“Johnson Dep.”) at 30:7–31:12; see also Dkt.
No. 113-4 (“Thomasson Dep.”) at 47:9–25.) At around 1:30pm, Defendants Thomasson and
SFJH Deputy Probation Officer Nigel Hicks searched M.B.’s room and found a cell phone,
adapters, a portable charger, and several charging cords. (Thomasson Dep. at 41:7-43:1.) This
triggered a unit-wide search of every detainee’s room and all common areas. (Id. at 59:2–11.)
M.B. was moved to a different room in his unit and placed in room confinement beginning at
3:00pm on December 21. (Id. at 40:4–6, 55:7–56:13.) While in room confinement, M.B. was
provided with about an hour of recreation time, during which he had access to shower facilities,
the telephone, visitation, and the gym. (See M.B. Dep. at 233:20–235:22; 262:1–25; Johnson
Dep. at 67:21–71:14.) He remained in room confinement until December 24, 2022, at around
11:00am. (Thomasson Dep. at 120:1–21; see also Dkt. No. 113-20 at 12.)
M.B. submitted two grievances concerning this confinement. First, during his
confinement, M.B. filed a grievance stating that he was beginning to feel depressed and
experience mental health issues because he had been in room confinement for days. (Dkt. No.
18 at 90.) He admitted he had contraband in his room but asserted that he was “not a threat to
[himself] or others,” there was no reason for him to be “lock[ed] down like a[n] animal,” and he
believed his confinement was a violation of his rights. (Id. at 89.) In a “[g]rievance attachment,”
M.B. “restate[d] that [his] rights [had been] violated” by his room confinement, explaining that
he was “unlawfully held in solitary confinement,” “held in isolation against [his] will,” and
“denied [his] rights to programming and exercise.” (Id. at 92.) He indicated that he was seeking
both damages for the harms he experienced and “a change in policies and practices so that
[SFJH] do[es] not violate [his] rights or the rights of other youth in the future.” (Id.) Second, in
June 2023, M.B. submitted a tort claim to the City and County. (Dkt. No. 113-10.) The claim

1 For filings on the docket besides depositions, all references to page numbers refer to ECF
pagination.
asserted that M.B.’s room confinement violated state law and regulations (including California
Welfare & Institutions Code section 208.3), the San Francisco Juvenile Probation Department’s
own written policies, and the California and federal constitutions. (Id. at 4–5.) M.B. was
released from SFJH in June 2025. (M.B. Dep. at 13:8–15.)
B. This Action
M.B. filed the operative Second Amended Complaint on April 30, 2024. (Dkt. No. 18.)
Defendants moved to dismiss (Dkt. No. 22), and the Court granted the motion in part and denied
the motion in part, giving M.B. leave to amend several of his claims (Dkt. No. 34). M.B. did not
amend his complaint. The case therefore proceeded on the following claims: the Monell claim,
the supervisory liability claim, the Fourth Amendment claim, the Eighth Amendment claim, the
Fourteenth Amendment claim, the Bane Act claim, and the negligence claim. M.B. moves for
summary judgment on the Bane Act, Monell, and supervisory liability claims. (See Dkt. No.
110.) Defendants move for summary judgment on all claims and M.B.’s request for declaratory
and injunctive relief, and punitive damages. (See Dkt. No. 113.)
III. LEGAL STANDARD
“[W]hen parties submit cross-motions for summary judgment, each motion must be
considered on its own merits.” Fair Hous. Council of Riverside Cnty., Inc. v. Riverside Two, 249
F.3d 1132, 1136 (9th Cir. 2001) (cleaned up). Under Federal Rule of Civil Procedure 56,
summary judgment is appropriate if the moving party “shows that there is no genuine dispute as
to any material fact” and that they are “entitled to judgment as a matter of law.” Fed. R. Civ. P.
56(a). A genuine dispute of fact exists if “the evidence is such that a reasonable jury could
return a verdict for the nonmoving party.” Anderson v. Liberty Lobby, Inc., 477 U.S. 242, 248
(1986). The Court draws all reasonable inferences in favor of the non-movant, keeping in mind
that “[c]redibility determinations, the weighing of the evidence, and the drawing of legitimate
inferences from the facts are jury functions.” Id. at 255. But conclusory and speculative
testimony does not raise genuine issues of fact and is insufficient to defeat summary judgment.
See Thornhill Publ’g Co., Inc. v. GTE Corp., 594 F.2d 730, 738 (9th Cir.1979).
IV. DISCUSSION
M.B.’s motion is denied in its entirety. Defendants’ motion is denied as to the Monell
claim, negligence claim, and request for punitive damages and granted as to all remaining
claims.
A. Evidentiary Objections
Defendants raise a number of objections to the evidence M.B. proffers in support of his
motion. Specifically, Defendants object to M.B.’s reliance on statements from Chief of the San
Francisco Juvenile Probation Department Katherine Miller, Assistant Chief Gabriel Calvillo, and
Acting Director Palei Otuhiva; findings from the Probation Department’s Skelly process and
related request-for-admission responses; reports from Disability Rights California (“DRC”), the
California Board of State and Community Corrections (“BSCC”), and the American Institutes
for Research; and emails from Public Defender Emily Goldman from 2024–2025. (Dkt. No.
113-1 at 18–22.) Subject to the limitations and qualifications described below, the evidence is
admissible and therefore may be permissibly considered for summary judgment purposes.
First, statements from Miller, Calvillo, and Otuhiva regarding how Defendants’ actions
aligned with jail policies and whether Thomasson’s purported purpose for subjecting M.B. to
room confinement was consistent with established practices and what was typically treated as an
imminent threat constitute proper lay opinions. (E.g., Dkt. No. 111-3 at 57 (investigation
report).) However, statements regarding Thomasson’s actual intent are speculative, do not
constitute proper lay opinions, and therefore cannot be considered on summary judgment. (E.g.,
Dkt. No. 111-3 (“Miller Dep.”) at 61:4–8.) Second, the request-for-admission responses
associated with the Probation Department’s Skelly process do not constitute binding Rule 36
admissions regarding whether Defendants’ use of room confinement was, in fact coercive. M.B.
has not provided any evidence that the Probation Department’s Skelly process constituted a
“judicial-like adversary proceeding” capable of giving rise to findings with preclusive effect.
Jacobs v. CBS Broad., Inc., 291 F.3d 1173, 1179 (9th Cir. 2002) (quoting Imen v. Glassford, 201
Cal. App. 3d 898, 907 (1988)). However, those admissions are relevant evidence of how
supervisors at the Department viewed that issue. Finally, the factual findings in the DRC and
BSCC reports (including the findings about other incidents described in the DRC and BSCC
reports) are admissible under Federal Rule of Evidence 803(8), even if the witness statements in
those reports constitute a second level of hearsay that are not admissible. The Court does not
reach Defendants’ other objections to the DRC and BSCC reports or their objections to the
American Institutes for Research report and the Goldman emails, which are immaterial to the
Court’s resolution of the motions for summary judgment.
B. Eighth Amendment Claim
Defendants are entitled to summary judgment on M.B.’s Eighth Amendment claim. M.B.
is a juvenile detainee who, despite being adjudicated delinquent, has not been convicted of a
crime. See Cal. Welf. & Inst. Code § 203 (“An order adjudging a minor to be a ward of the
juvenile court shall not be deemed a conviction of a crime for any purpose, nor shall a
proceeding in the juvenile court be deemed a criminal proceeding.”). Accordingly, the
Fourteenth Amendment applies to his challenge to his placement in room confinement. See
Gary H. v. Hegstrom, 831 F.2d 1430, 1432 (9th Cir. 1987); see also Vazquez v. Cnty. of Kern,
949 F.3d 1153, 1163 (9th Cir. 2020); Ingraham v. Wright, 430 U.S. 651, 671 n.40 (1977)
(“Eighth Amendment scrutiny is appropriate only after the State has complied with the
constitutional guarantees traditionally associated with criminal prosecutions.”). Defendants’
motion for summary judgment on this claim is therefore granted.
C. Fourth Amendment Claim
Defendants are entitled to summary judgment on M.B.’s Fourth Amendment claim. At
the time of his room confinement, M.B. was subject to the jurisdiction of the San Francisco
Juvenile Court, and he does not contest that his detention at SFJH was legitimate. Thus, the
Fourteenth Amendment—not the Fourth Amendment—governs his claims challenging his room
confinement. Pierce v. Multnomah Cnty., 76 F.3d 1032, 1043 (9th Cir. 1996) (“[T]he Fourth
Amendment sets the applicable constitutional limitations on the treatment of an arrestee detained
without a warrant up until the time such arrestee is released or found to be legally in custody
based upon probable cause for arrest.”); cf. Graham v. Connor, 490 U.S. 386, 395 & n.10 (1989)
(“[T]he Due Process Clause protects a pretrial detainee from the use of excessive force that
amounts to punishment.”). Defendants’ motion for summary judgment on this claim is granted.
D. Fourteenth Amendment Claim
Although a reasonable jury could conclude that Defendants violated M.B.’s Fourteenth
Amendment rights, M.B. has failed to carry his burden of demonstrating that his Fourteenth
Amendment rights were clearly established at the time of his room confinement. Thus,
Defendants are shielded by qualified immunity and entitled to summary judgment on M.B.’s
Fourteenth Amendment claim.
First, a reasonable jury could conclude that Defendants violated M.B.’s procedural due
process rights. M.B. has a state-created liberty interest in avoiding coercive room confinement,
which arises from California Welfare & Institutions Code section 208.3. See Johnson v. Ryan,
55 F.4th 1167, 1180 (9th Cir. 2022). Section 208.3(b)(2) provides that, for juveniles, “[r]oom
confinement shall not be used for the purposes of punishment, coercion, convenience, or
retaliation by staff.” Though Defendant argues that the standard articulated in Sandin v. Conner,
515 U.S. 472 (1995), determines whether section 208.3 grants M.B. a state-created liberty
interest (Dkt. No. 113-1 at 27), the Ninth Circuit has stated that whether Sandin applies to
detainees who are not convicted prisoners “is unclear,” Carlo v. City of Chino, 105 F.3d 493, 498
(9th Cir. 1997). The Ninth Circuit observed that “[a] majority of the courts that have addressed
this question have held that Sandin does not govern the assessment of state-created liberty
interests for pretrial detainees” and instead have applied the standard articulated in Hewitt v.
Helms, 459 U.S. 460 (1983). Carlo, 105 F.3d at 498–99. Although M.B. is neither a pretrial
detainee nor a convicted prisoner, California’s juvenile justice system is rehabilitative, and under
state law juvenile halls “shall not be deemed to be, nor be treated as, . . . penal institution[s].”
Cal. Welf. & Inst. Code § 851; see also id. § 202(b)–(e). Any punishment must be “consistent
with . . . rehabilitative objectives” and cannot be punishment for its own sake. Id. § 202(b).
Moreover, as described above, M.B. was adjudicated delinquent but not convicted of any crime.
Accordingly, the Court is persuaded that the Hewitt standard governs the question of whether
section 208.3 grants M.B. a protected liberty interest. See Carlo, 105 F.3d at 498–99.
Under Hewitt, a state statute can give rise to a federally protected liberty interest by using
mandatory language and placing substantive limitations on official discretion. See Hewitt, 459
U.S. at 472; see also Valdez v. Rosenbaum, 302 F.3d 1039, 1044 (9th Cir. 2002). Here, section
208.3(b)(2) prohibits without qualification the use of room confinement “for the purposes of . . .
coercion.” Defendants note that section 208.3(b)(1) also provides that “[r]oom confinement shall
not be used before other less restrictive options have been attempted and exhausted, unless
attempting those options poses a threat to the safety or security of any minor, ward, or staff.”
That provision may allow discretion regarding whether to try less restrictive options before using
room confinement, but it does not permit discretion to use room confinement for purposes of
coercion. Section 208.3 therefore substantively limits SFJH officials’ discretion and gives rise to
a protected liberty interest that Defendants violated by subjecting M.B. to three days of room
confinement. Cf. Chino, 105 F.3d at 499; Valdez, 302 F.3d at 1045. At the hearing on the
motions, Defendants’ counsel argued that M.B. proffered insufficient evidence to permit a
reasonable jury to conclude that the procedural protections he was actually afforded were
inadequate. However, because this argument was raised for the first time at the hearing, thereby
preventing M.B. from presenting evidence in response to it, the Court does not consider it. See
Sloan v. Gen. Motors LLC, No. 16-cv-07244-EMC, 2020 WL 5517244, at *5 (N.D. Cal. Sept.
14, 2020). Therefore, a reasonable jury could conclude Defendants violated M.B.’s procedural
due process rights.
Second, a reasonable jury could conclude that Defendants violated M.B.’s substantive
due process rights. Conditions of detention that “amount to punishment” violate detainees’
substantive due process rights. Bell v. Wolfish, 441 U.S. 520, 535 (1979). Absent an intent to
punish, whether Defendants’ “restrictions and practices constitute punishment in the
constitutional sense depends on whether they are rationally related to a legitimate nonpunitive
governmental purpose and whether they appear excessive in relation to that purpose.” Id. at 561.
Even assuming the room confinement was not intended to punish M.B. and that use of room
confinement to elicit information about how M.B. obtained the contraband did not constitute
punishment, a reasonable jury could conclude that M.B.’s room confinement was excessive in
relation to a legitimate nonpunitive governmental purpose. Though Defendants observe that
safety concerns arising from the discovery of contraband and subsequent threats by other
detainees could constitute a legitimate nonpunitive purpose (see Dkt. No. 113-1 at 29), a
reasonable jury could conclude that the threats were not credible. Thomasson’s
contemporaneous email identified the presence of contraband in M.B.’s cell as the sole safety
concern at the time. (See Dkt. No. 111-3 at 50.) After evaluating witness credibility, a
reasonable jury could conclude that the additional threats and safety concerns were not in fact
present but were instead post hoc justifications generated during the investigation of the incident.
A reasonable jury could further conclude that M.B.’s three-day detention was excessive in
relation to any safety concerns associated with the finding of contraband, given that the
contraband had already been confiscated from M.B.’s cell at the time of his room confinement
(Id. at 50–51). See France v. Allman, No. 15-cv-04078-JSC, 2016 WL 7439577, at *2 (N.D.
Cal. Dec. 27, 2016) (placement in safety cell did not violate due process given existence of
credible, ongoing threat). Accordingly, a reasonable jury could find that Defendants violated
M.B.’s substantive due process rights.
Nonetheless, Defendants are entitled to summary judgment on M.B.’s procedural and
substantive due process claims because they are protected by qualified immunity. Qualified
immunity shields state officials from claims for money damages unless a plaintiff establishes
“(1) that the official violated a statutory or constitutional right, and (2) that the right was ‘clearly
established’ at the time of the challenged conduct.” Ashcroft v. al-Kidd, 563 U.S. 731, 735
(2011) (quoting Harlow v. Fitzgerald, 457 U.S. 800, 818 (1982)). The purported “clearly
established” right must not be defined at a high level of generality. See Mullenix v. Luna, 577
U.S. 7, 12 (2015) (per curiam). “The dispositive question is whether the violative nature of
particular conduct is clearly established.” Id. (emphasis in original) (internal quotation marks
omitted).
M.B. has failed to carry his burden of establishing that his room confinement violated
clearly established law under the Fourteenth Amendment at the time. As to M.B.’s procedural
due process rights, while the Court concludes that the Hewitt test applies to M.B.’s procedural
due process claim, M.B.’s briefing did not identify any clearly established law addressing the
question of whether the Hewitt test or the Sandin test applies to the issue of whether juvenile
detainees who have been adjudicated delinquent have a state-created liberty interest conferred by
a state statute with mandatory language. Nor could M.B.’s counsel identify any clearly
established law addressing this question at the hearing on the motions. Therefore, because it was
not clearly established at the time of M.B.’s room confinement that Hewitt applied to him,
qualified immunity precludes liability because a reasonable official would not have necessarily
known that violations of section 208.3 also violated the Fourteenth Amendment. See al-Kidd,
563 U.S. at 741. For the same reasons, qualified immunity would shield Defendants from
damages liability even if the Sandin test applied. Neither M.B.’s briefing nor his counsel’s
argument at the hearing identified any clearly established law indicating that the room
confinement to which M.B. was subjected “impose[d] atypical and significant hardship on” him
“in relation to the ordinary incidents” of juvenile detention. See Sandin, 515 U.S. at 484.
Accordingly, a reasonable official would not necessarily know that subjecting M.B. to room
confinement given the circumstances of this case violated the Fourteenth Amendment.
As to M.B.’s substantive due process rights, M.B. has failed to identify any cases clearly
establishing that imposing a restriction on a juvenile detainee to extract information pertinent to
overall detention facility safety constitutes an “intent to punish on the part of . . . officials” for
substantive due process purposes. Bell, 441 U.S. at 538. M.B. has also failed to identify any
clearly established law indicating that the room confinement to which he was subjected was
excessive in relation to Defendants’ need to obtain information for their investigation and for the
safety of him and other detainees in his unit. Thus, a reasonable officer would not necessarily
know that by subjecting M.B. to three days of room confinement for information extraction and
safety purposes, they would be violating the Fourteenth Amendment.
For the foregoing reasons, Defendants are entitled to qualified immunity. Accordingly,
Defendants’ motion for summary judgment on M.B.’s Fourteenth Amendment claim is granted.
E. Monell Claim
The parties’ cross-motions for summary judgment as to the Monell claim are denied.
Material disputes of fact exist as to whether SFJH had a longstanding practice or custom of using
room confinement as punishment.
As an initial matter, M.B.’s Monell claim is not barred by the Prison Litigation Reform
Act (“PLRA”). (Dkt. No. 113-1 at 22.) For a grievance to exhaust a claim under the PLRA, it
must “alert[] the [detention facility] to the nature of the wrong for which redress is sought.”
Reyes v. Smith, 810 F.3d 654, 659 (9th Cir. 2016) (quoting Sapp v. Kimbrell, 623 F.3d 813, 824
(9th Cir. 2010)). Even though M.B.’s grievance did not state explicitly that he was bringing a
Monell claim, he indicated that he was seeking “a change in policies and practices” so that SFJH
would not violate his rights or the rights of other detainees in the future. (Dkt. No. 18 at 92.)
This statement is enough to alert SFJH that he was challenging the policies and practices that
resulted in his being placed on room confinement. Cf. Rich v. Pereira, No. 18-cv-06266-EMC,
2020 WL 3414703, at *8 (N.D. Cal. June 22, 2020).
In support of his assertion that SFJH had a longstanding practice or custom of using room
confinement as punishment, M.B. points to reports from DRC and the BSCC. The DRC report,
dated February 23, 2016, found that SFJH “uses room confinement as punishment, and also
places youth on room confinement for months at a time” with “little due process or written
guidelines for when and how youth are put on room confinement, and how they can come off of
room confinement.” (Dkt. No. 110-14 at 3.) It further found that those on room confinement are
“allowed out of a cell as little as an hour a day” and that the manner in which room confinement
is used “violate[s] [established] guidelines and place[s] youth . . . at risk of harm.” (Id.) In one
BSCC report, dated February 11, 2021, the BSCC stated that it “reviewed several incident
reports related to room confinement” and found that in some cases, “youth were placed in their
rooms as a sanction.” (Dkt. No. 110-15 at 5.) Based on this evidence, a reasonable jury could
conclude that SFJH had a longstanding practice or custom of using room confinement as
punishment.
A jury could also reach a contrary conclusion. Defendants argue that this evidence is too
remote in time, describes isolated and sporadic incidents, and addresses state law violations
rather than federal constitutional violations. (See Dkt. No. 113-1 at 33.) Instead, Defendants
point to the San Francisco Juvenile Probation Department’s written policies and state law, which
prohibit the use of room confinement for coercive and punitive purposes. (See Dkt. No. 113-15
at ¶ 5; Dkt. No. 113-17.) A reasonable jury could therefore conclude that the DRC and BSCC
reports are inadequate to suggest the existence of an unwritten custom or policy of using room
confinement for punitive purposes—particularly given the existence of a written policy
prohibiting precisely that. M.B. and Defendants’ cross-motions for summary judgment on the
Monell claim are denied.2
F. Bane Act Claim
Defendants’ motion for summary judgment on the Bane Act claim is granted, and M.B.’s
motion is denied. To establish a claim under the Bane Act, a plaintiff must prove that the
defendant acted with specific intent to violate their protected rights. See Cornell v. City and
County of San Francisco, 17 Cal. App. 5th 766, 803 (2017). Specifically, a plaintiff must
demonstrate (a) that the right at issue is “clearly delineated and plainly applicable under the
circumstances of the case” and (b) that the defendant “commit[ted] the act in question with the
particular purpose of depriving the citizen victim of his enjoyment of the interests protected by
that right.” Id. (cleaned up). As stated above, M.B. has failed to demonstrate that his room

2 Contrary to Defendants’ suggestion, the Court did not dismiss M.B.’s failure-to-train theory for
his Monell claim but merely held that the Monell claim survived dismissal without restricting
that claim to any particular theory. (Dkt. No. 34 at 3-4.) Thus, denying Defendants’ motion for
summary judgment on this theory does not “revive” the theory or reopen the window for
discovery on it.
confinement violated clearly established law under the Fourteenth Amendment at the time. For
similar reasons, his Fourteenth Amendment rights were not clearly delineated and plainly
applicable to the circumstances of this case for Bane Act purposes. See Sandoval v. Cnty. of
Sonoma, 912 F.3d 509, 520 (9th Cir. 2018). Nor were M.B.’s state law rights clearly delineated
and plainly applicable because it was unclear that placing a juvenile detainee in room
confinement to find out information relevant to safety constitutes coercion. Accordingly,
Defendants’ motion for summary judgment on the Bane Act claim is granted, and M.B.’s cross-
motion is denied.
G. Supervisory Liability Under Section 1983
Defendants’ motion for summary judgment on the supervisory liability claim against
Thomasson is granted, and M.B.’s motion is denied. M.B. fails to identify any predicate
constitutional violations by Hicks and Warren Johnson, Thomasson’s subordinates, let alone any
clearly established violations. Thus, supervisory liability does not attach to Thomasson. See
Corales v. Bennett, 567 F.3d 554, 570 (9th Cir. 2009). Furthermore, as stated above, qualified
immunity shields Thomasson from liability on M.B.’s constitutional claims for Thomasson’s
own actions concerning M.B.’s room confinement. Accordingly, Defendants’ motion for
summary judgment on this claim is granted, and M.B.’s motion is denied.
H. Negligence Claim
Defendants’ motion for summary judgment on the negligence claim is denied.
Defendants argue (a) that M.B. cannot establish that Defendants owed him a duty with regard to
their decision to subject him to room confinement and (b) that Defendants are entitled to
discretionary act immunity under California Government Code section 820.2. (Dkt. No. 113-1 at
39.) Neither argument justifies granting summary judgment.
It is well established that custodians owe their detainees a duty to protect them from
foreseeable harm. Cf. Giraldo v. Cal. Dep’t of Corr. & Rehab., 168 Cal. App. 4th 231, 250–51
(2008) (describing “a duty of care on a jailer owed to a prisoner” as the “epitome of a special
relationship”). Defendants are therefore incorrect that they did not owe M.B. a duty when
deciding to subject him to room confinement, which a reasonable jury could find would
foreseeably cause him harm.
Defendants are also not entitled to discretionary act immunity. Under California
Government Code § 820.2, “a public employee is not liable for an injury resulting from his act or
omission where the act or omission was the result of the exercise of the discretion vested in him,
whether or not such discretion be abused.” While discretionary governmental functions are
entitled to immunity under section 820.2, ministerial functions are not. Caldwell v. Montoya, 10
Cal. 4th 972, 981 (1995). In explaining how to draw the line between discretionary functions
and ministerial ones, the California Supreme Court acknowledged that “[a]lmost all acts involve
some choice among alternatives, and the statutory immunity thus cannot depend upon a literal or
semantic parsing of the word ‘discretion.’” Id. Instead, the California Supreme Court drew the
line based on the difference between “planning” and “operational” functions of government. Id.
“Immunity is reserved for those basic policy decisions which have been expressly committed to
coordinate branches of government,” because judicial interference in such “areas of quasi-
legislative policy-making” would be “unseemly.” Id. (emphasis in original, alterations and
citations omitted). Thus, immunity “applies only to deliberate and considered policy decisions.”
Id. (emphasis in original). By contrast, “there is no basis for immunizing lower-level, or
‘ministerial,’ decisions that merely implement a basic policy already formulated.” Id. Thus, a
bus driver’s decision not to intervene in a violent assault, a therapist’s failure to warn a homicide
victim of the patient’s threats to kill her, and a police officer’s negligent handling of a traffic
investigation were all non-immune decisions, despite the judgment they required. Id. at 981–82.
Here, Defendants’ actions fall on the non-immune “operational” side of the line, rather
than the immune “planning” side. State law and San Francisco Juvenile Probation Department
policy require the existence of safety concerns in order to justify subjecting a juvenile detainee to
room confinement without considering less restrictive options; they also prohibit the use of room
confinement for coercive purposes. M.B.’s claims do not challenge those policies but instead
challenge Defendants’ implementation of those policies as applied to his situation. Defendants’
decisions, while requiring some level of judgment, were not quasi-legislative plans involving
deliberate and considered policy choices. See Luttrell v. Hart, No. 19-cv-07300-EJD, 2020 WL
5642613, at *8 (N.D. Cal. Sept. 22, 2020). Defendants are thus not entitled to discretionary act
immunity, and their motion for summary judgment on the negligence claim is denied.
I. Declaratory and Injunctive Relief, and Punitive Damages
Defendants’ motion for summary judgment is granted as to M.B.’s request for declaratory
and injunctive relief and denied as to M.B.’s request for punitive damages. M.B. does not
dispute that his release from SFJH moots his request for declaratory and injunctive relief. See
Alvarez v. Hill, 667 F.3d 1061, 1064 (9th Cir. 2012). However, as discussed above, a reasonable
jury could conclude that Thomasson subjected M.B. to room confinement for information
extraction purposes, that SFJH had a policy and practice of using room confinement as
punishment, and therefore that Defendants were reckless as to M.B.’s Fourteenth Amendment
and state law rights. Accordingly, Defendants’ motion is granted as to M.B.’s request for
declaratory and injunctive relief and denied as to his request for punitive damages.
V. CONCLUSION
For the foregoing reasons, M.B.’s motion for summary judgment is denied. Defendants’
motion for summary judgment is denied as to M.B.’s Monell claim, negligence claim, and
request for punitive damages, and granted as to all other claims.
IT IS SO ORDERED.
Dated: June 29, 2026

United States District Judge

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Source: Frix Law Library, https://www.frixlaw.com/law-library/cases/11380601. Public record. Not legal advice.