Calvert County Sheriff's are investigating a theft case after unknown suspect(s) boarded a boat that was docked at the Breezy Point Marina in Chesapeake Beach between June 20 and June 30 and stole a Garmin fish finder, a Standard horizon chart and a hand-held GPS, together valued at over $4700. 

Dep. Jeffrey Hardesty is investigating.

Anyone with information is asked to contact Sheriff's Office (410) 535-2800.