Maryland: State Police find 554 motorists DWI / DUI during May 2013

Eric Hoffman DWI arrest on May 11, 2013 by Maryland State Trooper Mowers at 3:46 am on Rt. 108 at Old Montgomery Road in Howard County, Md.

When a busload of troopers stops a DUI driver, how do they decide which one has to make the arrest?