The state of Maine refers to a DUI as an OUI (Operating Under the Influence) and prescribes criminal and administrative penalties. These penalties are more severe if there are aggravating factors which inlcude *Aggravating factors include a BAC of .15 percent or more, or traveling 30 m.p.h.
Maine’s drugged driving law is located at Maine Revised Statute Title 29-A Section 2411. It states that a person commits an OUI if that person operates a motor vehicle while under the influence of intoxicants.
Sobriety checkpoints are legal in Maine (see State v. Leighton, 551 A.2d 116 (Me. 1988)). These checkpoints (also referred to as "mobile checkpoints" or "roadblocks") are police traffic stops that are not tied to any specific or individual suspicions.