Evidence establishing a boater’s inebriation the night he was involved in a fatal collision will be suppressed if a motion filed by his attorney is granted in Cumberland County Superior Court in Portland.

Robert M. LaPointe, 38, of Medway, Mass., was indicted on seven charges related to an Aug. 11, 2007 collision on Long Lake in Harrison that killed Terry, Raye Trott, 55, of Naples and Suzanne Groetzinger, 44, of South Berwick in November.

Neale Duffett, the Portland attorney representing LaPointe, this week filed motions to have evidence suppressed from his client’s blood alcohol test and a search of the 32-foot speedboat he was piloting that sliced through a boat owned by Trott. In the motions filed, Duffett argues LaPointe was denied his Miranda rights advising him of his entitlement to an attorney and right to counsel when being questioned the night of the accident.

LaPointe has been charged with two counts of manslaughter, two charges of operating under the influence, two charges of operating a watercraft under the influence and one reckless conduct charge. If convicted, LaPointe could face up to 30 years in prison.

The state contends LaPointe had a blood alcohol content of .11 more than two hours after the collision that occurred just after 9 p.m. La Pointe suffered minor injuries after being thrown from his boat with his passenger, 19-year-old Nicole Randall of Bridgton. Randall was not charged in the incident.

LaPointe’s trial is expected to begin in the spring.