Monday morning Great Barrington Police Officers responded to a fight in progress at the Cumberland Farms on Main St. While investigating the fight, a man identified as a potential witness was determined to have an active warrant out of the State of Connecticut for a probation violation. While being placed into custody, Mitchell Tyler, 35, of Sheffield, fled from police into the woods behind Cumberland Farms. Great Barrington Police was assisted by Officers from Sheffield, Egremont, New Marlborough, Stockbridge, West Stockbridge, as well as the Massachusetts State Police in establishing a perimeter around the Christian Hill Road/Lake Mansfield Road area.