A gap in the Illinois law is part of the reason why most sex offenders living in nursing homes aren't listed on state police's online registry.
An investigation by the Chicago Tribune found facility administrators don't have to divulge the identities of sex offenders living in the homes. Instead, the law only requires homes to inform people of the state police online registry, which allows them to search for sex offenders by name (if known), city, county and ZIP code.

