Marion County, OR - Salem, OR

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Assist deputy district attorneys by conducting criminal investigations as assigned; conducts child support investigations and prepares cases for court action; assists in all phases of case preparation; and performs related work as required.


Works under the supervision of a Trial Team Supervisor the Criminal Investigations Supervisor who assigns investigations and outlines policies and procedures; conducts assignments in investigation procedures and in child support areas.


Supervision of employees is not a responsibility of positions in this classification. However, an employee in this classification may assume lead work responsibilities in the coordination of investigative work assignments and schedules.

Typical Duties - Duties include, but are not limited to the following:
  • Reads and analyses technical reports from investigations.
  • Writes technical reports for court processing.
  • Accesses computer equipment for criminal history and locating information.
  • Prepares court displays for trials.
  • Reports findings orally to supervising attorney.
  • Locates and interviews persons to prepare for trial.
  • Schedules events.
  • Coordinates witness appearance.
  • Operates a motor vehicle
    • Transports witnesses
    • Serves subpoenas
    • Examines and photographs crime scenes
    • Prepares and serves subpoenas for court
    • Transports persons for interviews and court appearances
  • Operates electronic equipment to prepare court exhibits.
  • Performs mathematical calculations

Requirements for the Position:


  • Three (3) years law enforcement experience, which includes criminal investigations; AND two (2) years of college with specialization in police science field; OR
  • Any satisfactory equivalent combination of education, training and/or experience relevant to the position.

    • Must possess a current driver’s license in the applicant’s state of residence and an acceptable driving history. Marion County will obtain a copy of the driving record for selected applicants from Driver and Motor Vehicle Services.
    • The finalist for this position will be required to pass a criminal history background check, however conviction of a crime may not necessarily disqualify an individual for this position.
    • This is a full-time position, which is eligible for overtime.
    • This position is represented by a union.
    • Typical work schedule: Monday - Friday, 8:00 a.m. - 5:00 p.m. with flexibility depending upon the needs of the department.

    Considerable knowledge of : investigation techniques and procedures; the principles of identification and preservation of evidence; services providing information useful in locating persons; State laws concerning rules of evidence; courtroom practices, procedures, and case presentation; criminal justice system.

    Ability and skill to : obtain information and evidence by observations, record examinations and interviews; analyze and evaluate the statements of witnesses or suspected violators; secure and present evidence in oral or written form; to deal with citizens and public officials under conditions requiring tact and good judgement; analyze situations accurately, to think and act quickly in emergencies, and to adopt an effective course of action; to prepare correspondence and reports; operate a motor vehicle; operate a computer.

    Provides backup and support to coworkers; establishes and maintains professional and effective working relationships with customers, coworkers and other agencies; maintains punctual and regular attendance; complies with department and county policies, procedures and regulations; participates fully as a member of a team; participates fully as support to a service area or areas; participates in employee training and orientation; provides training to coworkers as requested; performs other job duties as assigned by supervisor.

    Customer service; creativity; decision making; basic math; use of discretion; effective interpersonal skills; independent judgment; fluency in reading, speaking and writing English; problem analysis; reasoning; teamwork; and negotiation.

    Drives a motor vehicle and maintains an effective driving history; sees with depth perception; bends; lifts and carries up to 20 lbs.; uses fingers and hands to grasp and handle items; hears a normal speech level; reads a 12 point font; stands and walks; speaks with a clear and audible voice; uses repetitive motion of hands, wrists and feet; turns neck and torso 90 degrees in either direction.

    Marion County, OR - 22 months ago - save job
    About this company
    The Marion County Sheriff's Office is committed to our core values. These 12 values represent the foundations of our agency. They guide our...