Criminal Investigator

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Criminal Investigator

Investigation @Colorado 18th Judicial District Attorney’s Office posted 4 hours ago

• Post Date : April 23, 2026
• Salary: $41.00 - $62.00 / Annual
• View(s) 15
  
  

Job Detail

• Job ID 22013
  
  

Job Description

GENERAL DESCRIPTION OF JOB:

The Criminal Investigator performs a variety of semi-complex to complex investigations of conventional crimes, as well as crimes filed and prosecuted through any of the Office’s specialized units in support of the statutory requirements of the Office of the District Attorney. Assists in all investigative aspects of the prosecution of cases, from pre-filing through final case disposition.

Duties

• Conducts pre and post case filing investigations of semi-complicated conventional crime activities, as well as complicated and often sensitive investigations; analyzes initial data to determine probable criminal law violations, case validity, and course of investigation; prepares preliminary witness/suspect lists, gathers evidence and documents through reports and supporting evidentiary lists those findings of fact to be included in the case file. Performs surveillance activities as necessary, researches a wide variety of records and related documents; compiles, indexes, records and analyzes relevant data to develop case file as necessary for court filing; employs various evidence gathering techniques, including but not limited to: witness interviews, suspect interrogation, wiretaps, crime scene searches, polygraph analysis and crime lab analysis. Meets periodically with attorney(s) to discuss case preparation, and advise in areas (such as plea bargaining) on cases that are highly visible and sensitive.
• Coordinates investigations with other jurisdictional police agencies as necessary; may act as case coordinator to cooperating agencies’ investigatory personnel; provides advice, expertise, or other assistance to these agencies within the 18th Judicial District. Composes and prepares a variety of moderately complex to complex reports and warrant affidavits as required by law and established precedent; appears in court as required to testify as prosecution witness; serves as a special investigator for Grand Jury proceedings. Ability to readily and independently prepare search warrant – and court order – affidavits, and to plan and execute search warrants, arrest warrants, orders for non-testimonial evidence seizure, and court-ordered production of records.
• Performs all of the associated duties, including but not limited to: office and witness security, meetings with attorneys, public relations, handling citizens’ complaints/inquiries, process serving, and transportation of case principals to court, may perform specialized functions in support of fellow workers’ professional standards requirements, e.g., weapons training and arrest procedures. Attends various professional meetings and seminars to exchange information and/or to discuss current or innovative techniques related to the field of criminal investigation; provides technical assistance/training to agencies within the 18th Judicial District; may provide assistance with the preparation of annual unit budget requests.
  
  

NOTE: Every incumbent in this position is expected to be fully competent in all of these duties, and independently capable of immediately performing all of these complex investigative functions under adverse conditions and without significant supervision.

Requirements

Skills, Abilities and Competencies:

• Extensive knowledge of the civil and criminal law enforcement principles, procedures and techniques, statutes and ordinances applicable to the 18th Judicial District of Colorado; extensive knowledge of the policies and procedures of the Office of the District Attorney. Extensive knowledge of police procedures; ability to gain working knowledge of accounting, polygraph, or other specialized investigative fields. Skill in interviewing; ability to gather, record and synthesize data; demonstrable interpersonal skills. Ability to prepare complete and accurate reports, warrants, affidavits, evidence lists, audio-visual aids, etc. as required for case preparation, filing and prosecution.
• Ability to operate standard office equipment, e.g., personal computer, iPad (tablet), fax, and copier. Proficiency in word processing and database programs, at minimum. Familiarity with police investigative databases and software, including criminal information databases and forensic downloading software.
• Ability to perform all peace officer related duties; ability to act/react in stressful and threatening situations; ability to control (physically, if necessary) uncooperative individuals; ability to operate and demonstrate skill in the use of vehicles, firearms, and other related equipment utilized in investigative work.
• Ability to independently conduct complicated, sensitive, and long-term criminal investigations under minimal direction.
• Ability to adjust and meet the changing demands and needs of the position. Ability to establish and maintain effective working relationships with superiors, attorneys, fellow investigators, suspects, witnesses, other police agency personnel and the general public; ability to communicate effectively, both orally and in writing, with same.
  
  

Behavioral Competencies (these are required for all positions at ACG):

• Accountability
• Accessibility
• Inclusivity
• Integrity
  
  

Education And Experience

• Bachelor degree in Criminal Justice or a closely related field.
• Four (4) years of previous police experience, two (2) of which must be at the level of Criminal Investigator.
• Colorado POST certification as a Peace Officer.
• Any equivalent combination of related work experience and education will be considered.
  
  

Pre-Employment Additional Requirements

• Must successfully pass pre-employment testing which includes an acceptable motor vehicle record (MVR) and background check.
• Possession of a valid Class “R” Colorado Driver’s License or the ability to obtain one within two weeks of appointment.
• Security clearance required: will require fingerprinting and a Colorado Bureau of Investigation (CBI) background check.
• Colorado POST certification as a Peace Officer, minimally qualified as a marksman to established unit standards. Physical ability to complete and maintain required arrest control and firearms-retention training.
  
  

Work Environment

Work is generally confined to an office environment or the field, although certain aspects of investigations may subject incumbents to extended working hours and potentially hazardous situations. Investigators

are routinely “on call” and are subject responding to dynamic and potentially dangerous situations at any hour. As such, each Investigator is required to train, participate in, and engage in “active shooter” protocols (scenarios) and remain prepared to respond to emergency situations on site.

Physical Demands

• Spends 70% of the time sitting and 30% of the time either standing or walking.
• Occasionally lifts, carries, pulls or pushes up to 40 lbs.
• Occasionally uses cart, dolly, or other equipment to carry in excess of 50 lbs.
• Occasionally climbs, stoops, kneels, balances, reaches, crawls and crouches while performing office or work duties.
• Verbal and auditory capacity enabling constant interpersonal communication through automated devices, such as telephones, radios, and similar; and in public meetings and personal interactions.
• Constant use of eye, hand and finger coordination enabling the use of automated office machinery or equipment.
• Visual capacity enabling constant use of computer or other work-related equipment.
  
  

Below, please list any special physical demands associated with this position. For instance, exposure to hazardous environments, blood borne pathogens, extreme heat/cold, use of power equipment or machinery, wearing of PPE (personal protective equipment).

Definitions

• Occasionally: Activity exists less than 1/3 of the time.
• Frequently: Activity exists between 1/3 and 2/3 of the time.
• Constantly: Activity exists more than 2/3 of the time.
  
  

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