An escape attempt by a man with two sexual assault convictions in Maine was foiled last week in Michigan when police arrested his 20-year-old girlfriend after she allegedly hid a shotgun and other items in a restroom.

The case involves Anthony David Dorothy, 35, formerly of Newburgh, who is accused of beating and imprisoning a neighbor in an apparent drug deal in Sanilac County, Mich., northeast of Detroit.

Sara Marie Bauer of Deckerville, Mich., allegedly hid a sawed-off shotgun, ammunition, a handcuff key and other items above a ceiling tile in a hospital restroom, according to a report published Friday in the Port Huron Times Herald.

Dorothy had a medical appointment scheduled at McKenzie Memorial Hospital in Sandusky, the seat of Sanilac County, on the afternoon of March 28, Sanilac County Sheriff Virgil Strickler told the Michigan newspaper. Bauer allegedly had hidden the items the previous day.

Bauer knew that Dorothy had a medical appointment at McKenzie Memorial Hospital on March 28, Strickland said. Dorothy “was having her put those devices inside a restroom that would be close to where he was supposed to be.”

Bauer has been charged with six felonies, including multiple counts of aiding the escape of a felony prisoner, conspiracy to escape and firearms violations. If convicted, she faces up to seven years in prison.

Police told the newspaper they became suspicious March 26, when a corrections officer noticed an inmate using another inmate’s assigned PIN to make phone calls. The Sanilac County Sheriff’s Department spent the next two days closely monitoring inmate contacts.

Dorothy, who testified against an inmate in a murder-for-hire scheme in Maine 10 years ago, was arrested on Jan. 23, after Sandusky, Mich., police received a tip that someone was being held inside Dorothy’s apartment. When asked to show identification, he jumped out a window and broke his ankle, but ran to a ditch and hid in the water, Sandusky Police Chief Paul Cowley told the Times Herald in January.

The victim, whose name was not released, suffered a blood clot on the brain, a fractured eye socket and broken nose, the newspaper reported.

Dorothy, whose criminal history in Maine includes two sexual assault convictions, was sentenced in April 1999 to 10 years in federal prison for being a felon in possession of a firearm. At that sentencing, the judge took five years off the mandatory 15-year prison term Dorothy was facing because of his significant cooperation with the government in several cases.

Released in 2001 after his sentence was reduced to 71/2 years, he twice was sent back to federal prison for violating his supervised release.

He was last released in May 2005 from a facility in Schuylkill, Pa.

Dorothy had been living at the apartment where he was arrested for about six months, Sandusky police said. He had been moving around Michigan for more than a year.

Both Bauer and Dorothy were being held Monday at the Sanilac County Jail on $100,000 bond each.

Dorothy is expected to be charged in U.S. District Court in Bangor for violating his supervised release.