Sex Offender List

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Sex Offender Website

The Crystal Lake Police Department provides a sex offender website for citizens to view. This site allows the user to enter a geographical location and determine its proximity to registered sex offenders. Citizens also have the ability to sign up for confidential email alerts to track sex offender residential movements. Please visit our website:


  Sex Offenders Search


View Child Murderer and Violent Offender Against Youth Information (CMVO)

The Illinois State Police maintain a comprehensive website listing all CMVOs registered in the State of Illinois. Interested parties are referred to browse the following site

Once you agree to the disclaimer (scroll to the bottom) you will be forwarded to the interactive site where you can search statewide under a number of parameters. You can also click on the mapping feature to search just your surrounding neighborhood. The site is very informative, listing offender’s criminal charges and certain other facts.