JEFFREY MATTSON
Crystal Lake,Illinois
Summary
Training Sergeant leading department training and professional development with a career built across patrol, investigations, supervision, and field training. Develops and delivers adult-learning programs that strengthen officer performance and readiness. Brings command of incident response, personnel mentoring, and interagency collaboration to support a high-performing agency.
Overview
2
2
Certifications
26
26
years of professional experience
Work History
Training Sergeant
Crystal Lake Police Department
Crystal Lake, Illinois
01.2026 - Current
- Oversee department training and professional development.
- Develop and deliver training utilizing adult-learning principles.
- Support the professional development and performance of department personnel.
- Develop and update training materials to reflect current policies, procedures, and operational priorities.
- Monitor compliance with required training standards and document completion status for department records.
- Assist with disciplinary investigations by gathering training records and related personnel documentation.
- Evaluate training exercises to identify practical improvements for patrol readiness and operational response.
- Coordinate with supervisors to align training priorities with staffing needs and operational coverage.
- Maintain organized training records to support audits, personnel reviews, and accreditation requirements.
- Assist with budget planning for training needs, materials, and recurring program expenses.
- Review use of force incidents as part of training feedback and policy reinforcement efforts.
Team Supervisor
Crystal Lake Police Department
01.2012 - Current
- Lead the Accident Investigation Team as team supervisor at Crystal Lake Police Department, guiding reconstruction work and case coordination.
- Complete 330+ hours of traffic crash reconstruction training through Northwestern University Center for Public Safety.
- Coordinate traffic crash reconstruction efforts and incident response priorities during investigations.
- Support training needs analysis and ongoing development for investigators through practical case review and coaching.
- Document investigation findings and maintain clear report writing standards for crash reconstruction cases.
Sergeant
Crystal Lake Police Department
Crystal Lake, Illinois
01.2023 - 01.2026
- Scheduled [number] officers per shift to maintain patrol coverage and response readiness.
- Supervised patrol officers, set daily priorities, and maintained consistent patrol operations across assigned shifts.
- Coached officers on field judgment, report writing, and policy development to strengthen day-to-day performance.
- Led training and development efforts by mentoring officers and supporting curriculum development for patrol readiness.
- Handled disciplinary investigations and use-of-force review while supporting criminal investigations as needed.
Detective
Crystal Lake Police Department
Crystal Lake, Illinois
01.2017 - 01.2023
- Investigated homicide-related and other criminal cases, gathering evidence, interviewing witnesses, and documenting findings.
- Served as an ICAC Investigator attached to the Illinois Attorney General's Office, supporting digital evidence review and child exploitation investigations.
- Prepared clear investigative reports and case summaries for prosecutors and supervising personnel.
Patrol Officer / School Resource Officer/FTO
Crystal Lake Police Department
Crystal Lake, Illinois
01.2001 - 01.2017
- Served students and staff as a School Resource Officer, resolving concerns and supporting a safe campus environment.
- Completed field training duties as a Field Training Officer, coaching newer officers on patrol procedures and report writing.
- Applied criminal investigations skills during evidence technician work and investigative follow-up on assigned cases.
- Recognized with multiple MADD awards and the State 100 DUI Arrest Pin for strong enforcement performance.
Education
undefined
Northwestern University Center for Public Safety
High School Diploma - undefined
Crystal Lake South High School
01-1998
Skills
- Training & Development
- Criminal Investigations
- Patrol Operations
- Incident Command
- Personnel Supervision
- Policy development
- Performance management
- Staff scheduling
- Curriculum development
- Public speaking
- Disciplinary investigations
- Accreditation compliance
- Budget management
- Use of force review
- Report writing
- Training needs analysis
Personal Information
Title: Training Sergeant | Crystal Lake Police Department
AWARDS & RECOGNITION
2019 Illinois Officer of the Year, 2019 McHenry County Officer of the Year, Medal of Valor, Two Lifesaving Awards, Two Distinguished Service Awards, Multiple Mothers Against Drunk Driving recognitions, State 100 DUI Arrest Pin
Certification
Use of Force Instructor
Timeline
Training Sergeant
Crystal Lake Police Department
01.2026 - Current
Sergeant
Crystal Lake Police Department
01.2023 - 01.2026
Detective
Crystal Lake Police Department
01.2017 - 01.2023
Team Supervisor
Crystal Lake Police Department
01.2012 - Current
Patrol Officer / School Resource Officer/FTO
Crystal Lake Police Department
01.2001 - 01.2017
High School Diploma - undefined
Crystal Lake South High School
undefined
Northwestern University Center for Public Safety