DETAILED OCCUPATION DATA
33-3021 Detectives and Criminal Investigators
Occupational Description:
Conduct investigations related to suspected violations of federal, state, or local laws to prevent or solve crimes. Excludes ?Private Detectives and Investigators? (33-9021).| Percentiles | |||||||||
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| Geography | Employment | Emp SE* | Mean | Mean SE* | 10th | 25th | Median | 75th | 90th |
| Minnesota | 1,390 | 29 | $39.42/hr | $1.18/hr | $26.60/hr | $30.58/hr | $37.72/hr | $45.18/hr | $57.60/hr |
| U S | 105,620 | 422 | $42.10/hr | $0.21/hr | $21.96/hr | $28.82/hr | $40.71/hr | $52.39/hr | $68.11/hr |
| *SE = Standard error, a measure of the statistical reliability of the estimate. | |||||||||
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Tasks for Detectives and Criminal Investigators
- Examines scene of crime to obtain clues and gather evidence.
- Investigates establishments or persons to establish facts supporting complainant or accused, using supportive information from witnesses or tangible evidence.
- Interviews complainant, witnesses, and accused persons to obtain facts or statements; and records interviews, using recording device.
- Schedules polygraph test for consenting parties, and records results of test interpretations for presentation with findings.
- Testifies before court and grand jury and appears in court as witness.
- Prepares assigned cases for court and charges or responses to charges, according to formalized procedures.
- Reviews governmental agency files to obtain identifying data pertaining to suspects or establishments suspected of violating laws.
- Observes and photographs narcotic purchase transaction to compile evidence and protect undercover investigators.
- Records progress of investigation, maintains informational files on suspects, and submits reports to commanding officer or magistrate to authorize warrants.
- Arrests or assists in arrest of criminals or suspects.
- Maintains surveillance of establishments to attain identifying information on suspects.
- Dusts selected areas of crime scene to locate and reveal latent fingerprints.
- Lifts prints from crime site, using special tape.
- Classifies and files fingerprints.
- Develops film and prints, using photographic developing equipment.
- Photographs, records physical description, and fingerprints homicide victims and suspects for identification.
- Photographs crime or accident scene to obtain record of evidence.
- Submits evidence to supervisor.
- Obtains and verifies evidence or establishes facts by interviewing, observing, and interrogating suspects and witnesses and analyzing records.
- Testifies before grand juries.
- Serves subpoenas or other official papers.
- Photographs, fingerprints, and measures height and weight of arrested suspects, noting physical characteristics, and posts data on record for filing.
- Reports critical information to and coordinates activities with other offices or agencies when applicable.
- Presents findings in reports.
- Maintains surveillance and performs undercover assignments.
- Develops and uses informants to get leads to information.
- Compares crime scene fingerprints with those of suspect or fingerprint files to identify perpetrator, using computer.
- Obtains and uses search and arrest warrants.
- Searches for evidence, dusts surfaces to reveal latent fingerprints, and collects and records evidence and documents, using cameras and investigative equipment.
- Examines records to detect links in chain of evidence or information.
- Assists in determining scope, timing, and direction of investigation.
- Analyzes charge, complaint, or allegation of law violation to identify issues involved and types of evidence needed.
- Serves warrants and makes arrests to return persons sought in connection with crimes or for non-payment of child support.
- Interviews and discusses case with parent charged with nonpayment of support to resolve issues in lieu of filing court proceedings.
- Reviews files and criminal records to develop possible leads, such as previous addresses and aliases.
- Interviews client to obtain information, such as relocation of absent parent, amount of child support awarded, and names of witnesses.
- Contacts employers, neighbors, relatives, and law enforcement agencies to locate person sought and verify information gathered about case.
- Obtains extradition papers to bring about return of fugitive.
- Confers with prosecuting attorney to prepare court case and with court clerk to obtain arrest warrant and schedule court date.
- Prepares file indicating data, such as wage records of accused, witnesses, and blood test results.
- Computes amount of child support payments.
- Testifies in court to present evidence regarding cases.
- Examines medical and dental x rays, fingerprints, and other information to identify bodies held in morgue.
- Examines case file to determine that divorce decree and court-ordered judgment for payment are in order.
- Completes reports to document information acquired during criminal and child support cases, and actions taken.
- Monitors child support payments awarded by court to ensure compliance and enforcement of child support laws.
- Determines types of court jurisdiction, according to facts and circumstances surrounding case, and files court action.
- Inspects cargo, baggage, personal articles, and common carriers entering or leaving U.S. for compliance with revenue laws and U.S. Customs Service regulations.
- Reviews private and public records and documents to establish, assemble, and verify facts and secure legal evidence.
- Interprets and explains laws and regulations to others.
- Institutes civil and criminal prosecutions and assists other governmental agencies with regulation violation issues.
- Issues or denies permits.
- Testifies in administrative and judicial proceedings.
- Collects samples of merchandise for examination, appraising, or testing and requests laboratory analyses.
- Determines duty and taxes to be paid, investigates applications for duty refunds, or petitions for remission or mitigation of penalties.
- Keeps records and writes reports of activities, findings, transactions, violations, discrepancies, and decisions.
- Examines, classifies, weighs, measures, and appraises merchandise to enforce regulations of U.S. Customs Service and prevent illegal importing and exporting.
- Determines investigative and seizure techniques to be used, and seizes contraband, undeclared merchandise, vehicles, and air or sea craft carrying smuggled merchandise.
- Arrests, detains, paroles, or arranges for deportation of persons in violation of customs or immigration laws.
- Examines visas and passports and interviews persons to determine eligibility for admission, residence, and travel in U.S.
