PRINCE FREDERICK, Md. – On May 5, the Calvert County Sheriff’s Office, with assistance from the Maryland State Police, conducted two separate Driving Under the Influence Checkpoints. 

In total, there were approximately 900 vehicle/citizen contacts as a result of the checkpoints.  As a result of the checkpoints there was 1 DUI arrest, several CDS under 10 grams citations issued, and 2 criminal CDS arrests.