We have two individuals in our community, within 500 feet on either side of the library, that have been identified as sex offenders on the NYS website. One comes to the library to take out materials. He is an adult and now living and working in the community, but still identified on the NYS website. He is listed at a higher level of offense. He does not come into our children's room, but does check out materials when programs are happening with children of all ages. Our employees are concerned with this individual in the library – he has not posed any threat, but there is still concern. What is the legal course for him coming into the library, coming into the library during certain hours and what action can be taken if something more transpires?