While students examine and compare class schedules, and parents formulate car pool plans, local police are doing their own behind-the-scenes back-to-school preparation as well — planning and preparing for the worst. Thursday morning at Gainesville Middle School, the Gainesville Police Department conducted an active shooter training scenario. “It’s important that parents know we conduct this type of training, so they have no doubts or hesitation on their children’s safety,” police spokesmen Cpl. Kevin Holbrook said.