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The County of DuPage
Wheaton, Illinois

Job Details for 2231 - EO Evidence Technician

Job Description

GRADE: 111

Under general supervision performs work of moderate difficulty in the recognition, recovery, preservation, and presentation of criminal evidence; performs related work as required.

An employee in this class is responsible for collecting, processing, photographing, and preserving physical evidence. Work requires the use of technical skill in the use of audiovisual equipment, fingerprinting and other identification techniques, and the processing of crime scenes. The work is performed under the general supervision of the Chief of Investigation.

The list of duties and responsibilities is illustrative only, and is not a comprehensive listing of all the duties and responsibilities performed by positions in this class.

• Processes crimes scenes
• Locates, recovers, identifies, marks and preserves physical evidence such as blood, clothing, and hair
• Makes casts of impressions
• Photographs crime scenes, and develops the film and prints negatives
• Prepares reports for use in court and testifies in court
• Maintains records and prepares other reports
• Serves warrants
• Maintains regular attendance and punctuality

• Adjusts work assignments and schedules in the event of an emergency to participate in emergency preparedness, response, and recovery activities as assigned.
• Depending on assignment may maintain required emergency management training, licensure and/or certifications.
• Performs related duties as required or assigned within job classification.

To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and /or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform essential functions.

Knowledge of:
• Current office practices, procedures and equipment
• County policies and procedures
• Applicable federal, state, and local laws, rules, regulations, codes, and/or statutes
• Methods and techniques of criminal evidence identifications
• Developing, dusting, recovering, and the filing of fingerprints
• Methods and techniques of taking, developing, and printing of photographs
• The principles of audio and videotape production and editing
• Drafting techniques as related to the production of drawings

Skill in:
• Using computer hardware and software including word processing, spreadsheets, databases, email, etc
• Applying an acquired knowledge of procedures, rules, regulations and services applicable to the assigned office
• Developing and printing photographs
• The operation of video cameras, recorders, and duplication equipment
• The use of good judgment in evaluating situations analytically and objectively
• Testifying in court
• Drafting techniques to produce required presentations
• Computer graphics and design
• Verbal and/or written communications
• Dealing effectively with others

Ability to:
• Manage projects and multiple priorities simultaneously
• Establish and maintain effective working relationships with department and division staff, other departments and others, such as vendors
• Communicate and use interpersonal skills to interact with coworkers, supervisor, the general public, etc. to sufficiently exchange or convey information and to receive work direction
• Ensure compliance with applicable federal, state, and local laws, rules, and regulations and statutory requirements
• Convey excellent oral and written communication
• Work effectively under stress
• Maintain confidentiality


Completion of an Associate’s degree in Business, or the completion of a High School Diploma or General Equivalency Diploma equivalent and two years of experience in criminal investigative or law enforcement work, and two (2) years of experience in photography, or as a Photographic Technician; or, an equivalent combination of education and experience sufficient to successfully perform the essential duties of the job such as those listed above.

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of the job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Heavy Work: Exerting up to 50 pounds of force occasionally, and/or up to 20 pounds of force frequently, and/or up to 10 pounds of force constantly to move objects.

The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

The work will occur in an office and field environment. While performing the duties and responsibilities the employee maybe exposed to loud noise, noxious odors, unsanitary conditions, chemicals, electricity, moving mechanical parts, varying weather conditions, and other related conditions and situations. The position is subject to being called out for crime scenes as determined by the agency’s needs.

Completion of Evidence Technician and Crime Scene and Police Photography training courses, or the ability to complete courses within the first year of employment. Must possess and maintain in good standing, a valid Illinois driver's license.