Cook County Sheriff's Office

Sheriff’s Police | Cook County Sheriff's Office Home Report a Crime / Tip Departments Bureau of Training and Education Community Engagement Cook County Sheriff’s Police Community Corrections Community Support Services Corrections Court Services Cook County E-911 The Office of Professional Review Employment Employment Opportunities Current Employee Information How Do I? At present in Illinois, only Cook County meets that statutory standard. The Cook County Sheriff’s Police Department is the third largest police department in the State of Illinois, with more than 500 officers. The Police Department is commanded by the Chief of Police and is divided into six principal divisions: Field Operations Division – Patrol (DUI specialists, Truck/Traffic Unit, Court Officers, Community Safety Team), Crossing Guards, Emergency Services, Air Support, School Safety Program, and Police Training Academy. Non-emergency: (708) 470-7455. Dial 911 for emergencies.