A Riverside man who is on parole for molesting a child was arrested during a compliance check Thursday after deputies found a backpack containing a rope and a ski mask, among other items he's prohibited from possessing.

Brian Keith Mosby, 63, was arrested for violating his parole during a citywide compliance check of registered sex offenders and convicted arsonists.

Mosby was previously convicted of lewd or lascivious acts with a child under 14 years by force/fear, police said.

He was contacted by Riverside police officers on the 700 block of South University Drive, and was searched on the scene as allowed by the terms of his parole.

During that search, officers found a backpack containing rope, a ski mask, condoms and "sex-enhancing pills. Possession of these items, officials said, is

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