Muskegon area law enforcement agencies checked up on sex offenders this week. 

Michigan State police reports that 113 registered sex offenders purportedly live within Muskegon Heights city limits. 

Ninety of them were living where they are supposed to be.   Six were taken back to jail and a dozen more now are considered official "absconders".

Michigan law requires that sex offenders register their current addresses with the law enforcement agencies, in person, at the local police or sheriff's office.