An Island man arrested this week is facing several charges of rape and indecent assault and battery against a mentally retarded person.

Peter Duart, 41, a registered Level II sex offender as well as a former assistant coach of the Martha’s Vineyard Regional High School football team, and an elected, currently serving member of the Tisbury planning board, was arrested by Massachusetts state police on Wednesday in Dartmouth after Oak Bluffs police issued a warrant for his arrest.

Mr. Duart was apprehended at a restaurant in Dartmouth. He was found to be in possession of over $5,000 in cash as well as his passport.

State police from the Oak Bluffs barracks traveled to Dartmouth to pick up Mr. Duart after his arrest, and he was brought back to the Island to be processed.

Oak Bluffs police obtained a search warrant to search Mr. Duart’s home on Daggett avenue in Tisbury, based on allegations that he possessed child pornography. During the search, police seized a laptop computer, DVDs as well as letters and notes.

He was arraigned on Thursday morning, bail was set at $50,000, and he was ordered to surrender his passport.

He is being held at the Dukes County Jail, according to a statement issued Friday by Oak Bluffs police.

In 2003 Mr. Duart was indicted by a grand jury on one count of rape and one count of indecent assault and battery on a retarded person.