Army MOS · Support

311A CID Special Agent

Current service use not established

This code is listed in the directory. Inclusion alone does not confirm current service use.

Overview

A CID Special Agent investigates known or suspected crimes involving government property or people subject to military jurisdiction and supervises investigation personnel. This agent examines crime scenes, collects and evaluates evidence, interviews involved individuals, apprehends suspects based on probable cause, prepares reports, and testifies before military or other appropriate tribunals.

Minimum clearance: Top Secret

Core Skills

  • Crime scene protection and evidence preservation
  • Witness interviews and suspect interrogations
  • Physical security surveys and corrective recommendations
  • Protective services for designated principals

Civilian Career Paths

Career associations are editorial assessments of the cited evidence, not an official crosswalk unless the evidence explicitly says so. O*NET supplies civilian occupation information, not proof of a military match. Related experience does not confer civilian qualifications. Tasks and tools below describe civilian work, not military training.

Detectives and Criminal Investigators

CID experience developing investigative plans, interviewing witnesses and suspects, evaluating physical evidence, and preparing investigation reports directly overlaps civilian criminal-investigation work.

How to prepare: Ask a target agency to assess your CID experience against its direct-entry investigator requirements or prior police-service route, since detectives typically begin as police officers. Appointment requirements vary by agency: most police and detectives complete agency academy and on-the-job training plus physical and personal screening, education ranges from a high-school diploma to a college degree, and federal agencies may require a bachelor's degree and extensive agent training.

What the civilian work involves
  • Obtain facts or statements from complainants, witnesses, and accused persons and record interviews, using recording device.
  • Record progress of investigation, maintain informational files on suspects, and submit reports to commanding officer or magistrate to authorize warrants.
  • Prepare charges or responses to charges, or information for court cases, according to formalized procedures.
Civilian tools and software (examples)
  • Microsoft Office software

Notes & Sources

Evidence for this guidance (3 documents)
  1. Army COOL MOC feed: 311A CID Special Agent

    [1] data/authority/army-codes.json entry 311A (OSD COOL feed, fetched 2026-07-25); DB rank warrant_officer, authority codeType warrant_officer

    Supports: Crime scene protection and evidence preservation, Witness interviews and suspect interrogations, Physical security surveys and corrective recommendations, Protective services for designated principals, Detectives and Criminal Investigators (O*NET 33-3021.00)

  2. O*NET: Detectives and Criminal Investigators

    [2] O*NET 30.3 occupational data

    Supports: Detectives and Criminal Investigators (O*NET 33-3021.00)

  3. Bureau of Labor Statistics: Police and Detectives

    [3] How to Become a Police Officer or Detective; retrieved 23 September 2026

    Supports: Detectives and Criminal Investigators (O*NET 33-3021.00)

Defense contractor jobs for 311A

Descriptions may be summarized for clarity. Verify all information with your branch career counselor or official military documentation before making career decisions.

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