RICHMOND -- The Contra Costa County Office of the Sheriff and the federal Drug Enforcement Administration are participating in National Prescription Drug Take Back Day with a collection event from 10 a.m. to 2 p.m. to Saturday at the Office of the Sheriff Bay Station at the West County Detention Facility, 5555 Giant Highway.

The public can bring expired, unused, and unwanted prescription drugs in for safe disposal.

The event prevents potentially dangerous from falling into the wrong hands or getting into waterways due to improper disposal.

The service is free and anonymous, no questions asked. But the DEA cannot accept liquids or needles or sharps, only pills or patches.

For more information on the Take Back program visit: www.dea.gov.