ELLSWORTH — A Southwest Harbor man who was arrested last month on drug trafficking charges has been sentenced to serve nine years in prison, according to the Maine Drug Enforcement Agency.

Robert A. Goodwin, 42, was on bail for two counts of aggravated trafficking in drugs, one charge from 2009 and another from 2010, when police received information last month that he had made multiple trips to Massachusetts to buy heroin that he later sold in Maine, the MDEA indicated Wednesday in a prepared statement. On May 21, Goodwin was under surveillance by police when he left the state on another suspected drug run, the statement indicated.

In 2010, Goodwin was arrested on Thanksgiving Day after he traveled out of state to buy heroin. In that arrest, police stopped Goodwin’s rental car in Ellsworth and found three retail bags of heroin and $3,000 on Goodwin, police have said.

Police believed Goodwin had hidden more drugs in a body cavity during the Thanksgiving 2010 stop and so obtained a search warrant in order to compel him to submit to an X-ray, according to police. The subsequent X-ray revealed a foreign object in Goodwin’s large intestine and, later that evening at Hancock County Jail, police recovered 20 grams of heroin from Goodwin, officials have said.

In December 2009, Goodwin had been arrested for trafficking in the prescription drug oxycodone.

On May 22 of this year, after learning that Goodwin had traveled out of state again to buy heroin to bring back to Maine, police executed search warrants at his home at 13A Cedar Lane in Southwest Harbor and an adjacent rental property. As a result of the searches, police took possession of 5 grams of heroin, several suboxone tablets and drug paraphernalia. Officers with MDEA, Southwest Harbor Police Department, Maine State Police and Coast Guard Investigative Service worked together in executing the warrants.

Goodwin already had been arrested earlier that morning after police approached him at his place of employment in Tremont, which they did not identify. Goodwin was subject to random search and testing as a result of his bail conditions and, after refusing to submit to a urine test, was arrested and taken to Hancock County Jail for violating those conditions, MDEA indicated. He later was charged with aggravated trafficking in scheduled drugs.

On May 31, Goodwin pleaded guilty to three counts of aggravated trafficking in scheduled drugs, including the charges stemming from his 2009 and 2010 arrests, and was sentenced to nine years in prison, according to MDEA.

Goodwin’s neighbor Alfred Lanpher, 43, was not at home on May 22 when police searched a trailer he is renting next to Goodwin’s home, so an arrest warrant was issued for him, police indicated. As a result of the warrant, Lanpher was arrested at home on May 31 by Southwest Harbor police and deputies with the Hancock County Sheriff’s Department on charges of unlawful furnishing and possession of heroin.

Lanpher later was released from Hancock County Jail in Ellsworth after posting $1,000 unsecured bail, according to MDEA. He is expected to appear in Hancock County Superior Court on June 20.

In addition to his conviction last week on three drug trafficking charges, Goodwin has a prior drug-related conviction from seven years ago. On Jan. 13, 2005, MDEA agents arrested Goodwin after interrupting a heroin deal in the parking lot of a Tremont church.

Police said at the time that Goodwin was at the steering wheel of a car and tried to speed off as an MDEA agent grabbed and hung on to him through the open window of the vehicle. As the agent was hanging on to Goodwin during the attempted escape, Goodwin’s car and that of another suspect collided before each driver again tried to speed away.

The other man was caught after a brief car chase while Goodwin’s escape route was blocked by an MDEA pickup truck, which he struck before he was apprehended. The agent who grabbed Goodwin was not seriously injured and the MDEA truck was damaged only slightly, MDEA agents said at the time.

As a result of the 2005 arrest and subsequent conviction, Goodwin was sentenced to serve four years and four months in prison for aggravated drug trafficking, six months for refusing to submit to arrest, and one year for reckless conduct, MDEA agents have indicated.