Nevada Police hold training at Cottey

Missouri Department of Conservation agent Sean Pennington, second from right, gives a group of Nevada police officers a briefing before they begin work clearing one of the residence halls during a training exercise at Cottey College Friday afternoon. Pennington is an assistant instructor along with Sgt. Steve Bastow, standing next to Pennington.

Officer Bolan escorts a "shooter" to officers waiting outside during the exercise Friday.

Nevada police officer Michael Bolan covers the group’s rear as they progress through the residence hall room-by-room searching for an “active shooter” during the training exercise.

Detective Clinton Berry, left, covers a stairwell as Officer Tony Strope covers the group clearing the room during the exercise.

All the officer’s weapons were checked three times prior to beginning the exercise and were fitted with zip ties which prevented them from operating.