A first offense DUI in Maryland results in both criminal and administrative penalties. Additionally, Maryland includes both DUI offenses (when the driver's BAC is .08% or higher) and DWI offenses (when the driver's BAC is .04% to .08%), which are separate charges with varying degrees of severity.
If you have been charged with DUI in Maryland for the second time within 5 years (the Maryland lookback period), it is considered a misdemeanor. There are some harsh consequences that come with the second DUI in Maryland, with jail time and expensive fines just some examples of the penalties.
Sobriety checkpoints are legal in Maryland (see 479 A.2d 903 (Md. 1984)). These checkpoints (also referred to as "mobile checkpoints" or "roadblocks") are police traffic stops that are not tied to any specific or individual suspicions.