There is that joke about cops and donut shops that every police officer and every donut shop owner has heard. But, the humorous connotation about cops stopping in for a beverage and snack never stuck with New York franchisee Roy Clark. A partner in the Wolak Group of Dunkin’ Donuts restaurants in Central New York, New Hampshire and Maine, Clark was intrigued when his partner, Ed Wolak, heard about a Syracuse-area business that hosted a successful “Coffee with a Cop” event for local residents. That was five years ago.