Lieutenant Evans is a 20-year veteran of the Cook County Sheriff's Police Department. The Sheriff’s Police serve Suburban Cook County, which consist of 132 municipalities and 150 square miles of unincorporated territory.  Prior to his appointment to the police department, he served as a Sheriff’s Corrections Officer at the Cook County Department of Corrections in Chicago, Illinois.

As a member of the Sheriff’s Police, Evans was assigned to the Office of the Deputy Chief of Special Functions, overseeing the Emergency Services Bureau until December of 2010. Prior to this assignment, Evans acted as an Area Commander, responsible for all uniformed patrol officers in the 5th and 6th Districts, two of the Department’s four patrol districts. From 2003-2005, he commanded the Special Operations Group, which includes the Organized Crime/Intelligence Section, the Vice and Gambling Section and the Hostage Barricade Terrorist Team.  During his career, Evans has been assigned to the Patrol Division, the Field Training Officer (FTO) program, Gang Crimes, SWAT, and The Safe Schools Program.  Evans also served at Training Academy as an Instructor.

In 1995, Bill was assigned to “Operation Restore Faith”, patrolling the crime ridden town of Ford Heights, Illinois.  This project was a joint State and County effort, policing one of America’s poorest communities.  In the late 1990’s, Evans also served as a Sergeant in the Cook County South Suburban HIDTA (High Intensity Drug Trafficking Area) Initiative where he supervised the Street Enforcement Team.
 
Bill is a current and active member of the Illinois Tactical Officer’s Association and also a former Executive Board member with the South Suburban Association of Chief’s of Police. Lieutenant Evans also served as the co-chairman of the Urban Area Security Initiative (UASI) Training and Exercise Committee. He is also a state certified instructor.  Bill’s area of expertise includes high risk warrant service preparation, dynamic and stealth room entries, tactical building searches, law enforcement leadership, safe schools and command and control issues.

Lieutenant Evans is a 16-year veteran of the Cook County Sheriff's Police Department’s Hostage Barricade Terrorist Team. He has served in many different capacities within the Team, including assistant Team leader and Team leader. He has participated in over 750 SWAT assignments since joining the Team in 1994.

In June of 2004, Lieutenant Evans and the Hostage Barricade Terrorist Team were recognized by the Illinois State Crime Commission for “Excellence in Law Enforcement”. In 2006, the Hostage Barricade Terrorist Team was awarded a Unit Citation by the Illinois Tactical Officer’s Association for resolving an intense hostage situation in Cicero, Illinois.

In 2005, Evans lectured at the World SWAT Challenge Symposium in Las Vegas, Nevada, providing instruction to hundreds of SWAT supervisors from all around the globe. Additionally, Lieutenant Evans was invited to speak at the 1st Annual Homeland Security Conference in Lisbon, Portugal in 2006 and returned to Portugal in 2008 to provide instruction to members of the Portuguese Maritime Police.   

Evans has also written a number of articles that have appeared in various publications such as SWAT Digest, the 1st Annual Homeland Security Conference of Portugal Magazine and the ITOA News.  He also served as the Head Boxing Coach of the Cook County Sheriff’s Athletic League. Evans also serves as a private consultant to a local school district and has lectured several times on safe school issues. Evans currently serves a professional consultant to former WBC Light Heavy weight Champion Montell Griffin.

Bill holds a Bachelor’s Degree in Sociology from Saint Joseph’s College in Indiana and a Master’s Degree in Criminal Justice from Chicago State University. He is currently pursuing a second master’s degree in Organizational Leadership from North Central College in Illinois. Lieutenant Evans is also a graduate of the Northwestern University School of Police Staff and Command in Evanston, Illinois and the Illinois Law Enforcement Training and Standards Board Executive Institute hosted by Western Illinois University.