Louisiana State Police Troop A will host its eighth annual Troop A Public Safety Expo from 11 a.m. to 3 p.m. Saturday at Blue Bayou Waterpark’s overflow parking lot on the corner of Highland Road and Interstate 10.

There will be public safety displays, free food and drinks, live music and plenty of activities. Attendees are encouraged to wear Halloween costumes and enjoy early trick-or-treating.

Informational activities include health screenings, helicopters, disaster recovery information, ladder trucks, patrol boats, motorcycle demonstrations, K-9 exhibitions and interactive children’s games.