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The County of DuPage
Wheaton, Illinois

Job Details for 2252 - EO Forensic Scientist

Job Description

GRADE: 311

Under immediate supervision, performs work of moderate difficulty in the examination, analysis and evaluation of physical evidence and unknown substances; performs related work as required.

Performs laboratory and comparative analysis of physical evidence requiring the application of the natural sciences to law enforcement related matters; work requires professional knowledge and technical skills.  Work is completed independently or with assistance of a Forensic Scientist Supervisor.  Testifies in court as an expert witness.  General supervision may be received from the Forensic Scientist Supervisor.

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.

• Conducts casework related to cannabis, controlled substances, trace evidence, latent prints, footwear and tire impressions, forensic biology, DNA, firearms and tool marks
• Examines, identifies, interprets and evaluates suspected evidence
• Enters and searches for information on computerized individual characteristic database systems
• Compares analytical findings with known standards
• Comprehends and follows detailed, highly technical, oral and written instructions to prepare clear, concise, comprehensive reports and records
• Performs technical and administrative reviews of case files in-house and with outside laboratories
• Provides expert testimony in court
• Provides professional assistance to submitting service agencies
• Maintains equipment to determine compliance with laboratory operating and safety standards
• Orders chemicals and equipment for the laboratory
• Takes annual proficiency tests
• Attend meetings, continuing education events and provide presentations
• Conducts tours
• Subject to overnight travel for training
• Maintains regular attendance and punctuality

• Adjusts work assignment or schedule in the event of an emergency to participate in emergency preparedness, response and recovery activities as assigned.
• Depending on assignment, may require emergency management training, licensure 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:
• The methods and procedures used in evaluating physical evidence
• Microscopical, chemical and other scientific testing methods used in criminalistics work
• Modern methods of classifying, indexing, filing and preserving laboratory records and evidence
• The principles and practices of police work
• Current office practices, procedures, and equipment
• County policies and procedures
• Applicable federal, state, and local laws, rules, regulations, codes, and/or statutes

Skill in:
• The use of tools and equipment in making laboratory analyses
• The evaluation of unknown substances
• Dealing effectively with others
• Effectively presenting evidence in court
• Preparing and presenting clear and concise reports.
• Applying an acquired knowledge of procedures, rules, regulations and services applicable to the assigned office
• Using computer hardware and software including work processing, spreadsheets, databases,
email, etc.

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
• 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 a Bachelor of Science Degree from an accredited institution, in Forensic Science, Chemistry, Biology, or other natural science or related program.
For the position of Forensic Scientist performing DNA analysis and/or DNA technical leader, compliance with the Federal Bureau of Investigation 'Quality Assurance Standards for Forensic DNA Testing Laboratories' requirements.

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 lift, carry, push, pull or otherwise move objects.

Must provide a DNA reference sample via a buccal swab, be fingerprinted and pass a background security check.

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 laboratory environment.  While performing the duties and responsibilities the employee will be exposed to loud noise, noxious odors, unsanitary conditions, hazardous materials such as chemicals, biohazards, and with fumes or airborne particles, electricity, moving mechanical parts, and other related conditions and situations.

Must possess and maintain in good standing, a valid Illinois driver's license.