# Justice Manual § 9-2.010: Investigations

> Federal · Agency guidance · In force

URL: https://www.frixlaw.com/law-library/statutes/JM_S9-2.010

## Section

- **Citation:** Justice Manual § 9-2.010
- **Heading:** Investigations
- **Jurisdiction:** Federal
- **Kind:** Agency guidance
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** DOJ Justice Manual / Title 9: Criminal / 9-2.000 - Authority Of The U.S. Attorney In Criminal Division Matters/Prior Approvals / Justice Manual § 9-2.010

## Text

The United States Attorney, as the chief federal law enforcement officer in his district, is authorized to request the appropriate federal investigative agency to investigate alleged or suspected violations of federal law. The federal investigators operate under the hierarchical supervision of their bureau or agency and consequently are not ordinarily subject to direct supervision by the United States Attorney. If the United States Attorney requests an investigation and does not receive a timely preliminary report, he may wish to consider requesting the assistance of the Criminal Division. In certain matters the United States Attorney may wish to request the formation of a team of agents representing the agencies having investigative jurisdiction of the suspected violations.

The grand jury may be used by the United States Attorney to investigate alleged or suspected violations of federal law. Unless circumstances dictate otherwise, a grand jury investigation should not be opened without consultation with the investigative agency or agencies having investigative jurisdiction of the alleged or suspected offense.

[cited in
JM 9-2.001
]

## Nearby sections

- [Justice Manual § 9-2.001 Introduction](https://www.frixlaw.com/law-library/statutes/JM_S9-2.001.md)
- [Justice Manual § 9-2.010 Investigations](https://www.frixlaw.com/law-library/statutes/JM_S9-2.010.md)
- [Justice Manual § 9-2.020 Declining Prosecution](https://www.frixlaw.com/law-library/statutes/JM_S9-2.020.md)
- [Justice Manual § 9-2.021 Armed Forces Enlistment as an Alternative to Federal Prosecution](https://www.frixlaw.com/law-library/statutes/JM_S9-2.021.md)
- [Justice Manual § 9-2.022 Pretrial Diversion as an Alternative to Federal Prosecution](https://www.frixlaw.com/law-library/statutes/JM_S9-2.022.md)
- [Justice Manual § 9-2.030 Authorizing Prosecution](https://www.frixlaw.com/law-library/statutes/JM_S9-2.030.md)
- [Justice Manual § 9-2.031 Dual and Successive Prosecution Policy ("Petite Policy")](https://www.frixlaw.com/law-library/statutes/JM_S9-2.031.md)
- [Justice Manual § 9-2.032 Notification to the Criminal Division of Certain Prosecutions of Attorneys](https://www.frixlaw.com/law-library/statutes/JM_S9-2.032.md)
- [Justice Manual § 9-2.040 Dismissal of Complaints](https://www.frixlaw.com/law-library/statutes/JM_S9-2.040.md)
- [Justice Manual § 9-2.041 Cancellation of Unexecuted Arrest Warrants](https://www.frixlaw.com/law-library/statutes/JM_S9-2.041.md)
- [Justice Manual § 9-2.050 Dismissal of Indictments and Informations](https://www.frixlaw.com/law-library/statutes/JM_S9-2.050.md)
- [Justice Manual § 9-2.060 Appeals, Mandamus, Stays, Rehearing, Certiorari](https://www.frixlaw.com/law-library/statutes/JM_S9-2.060.md)
- [Justice Manual § 9-2.100 Limitations on United States Attorneys](https://www.frixlaw.com/law-library/statutes/JM_S9-2.100.md)
- [Justice Manual § 9-2.101 American Bar Association Standards for Criminal Justice](https://www.frixlaw.com/law-library/statutes/JM_S9-2.101.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/JM_S9-2.010. Check the current official text before relying on it. Not legal advice.