Did you know Michigan's sex offender registry law was ruled unconstitutional in August 2016? Michigan's Sex Offender Registry is a database containing the names, addresses, and offense(s) of everyone in Michigan convicted of certain sexual offenses. This information is made available to the public. Offenders are classified into one of three "tiers," which is determined by the offense or the number of offenses. The tier determines how long a person remains in the registry.