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A Houlton man and woman are facing multiple charges after they were found Tuesday with $10,000 worth of methamphetamine, fentanyl and heroin in their possession at a Bangor motel, according to police.

Robin Witham, 31, was charged with aggravated trafficking in drugs, a Class A crime, and possession of a firearm by a prohibited person, a Class C crime, according to the Maine Drug Enforcement Agency and Bangor Police Department. His bail is set at $50,000.

Michaela Gray, 25, was charged with trafficking in scheduled drugs, a Class B crime. Her bail is set at $2,000.

Both remained incarcerated Friday morning at the Penobscot County Jail.

The investigation that led to the charges began about 8 a.m. Tuesday when Bangor police were called to a motel on outer Hammond Street for a report of an alleged assault. Witham and Gray were found standing in the parking lot, according to police.

In addition to the drugs, investigators allegedly found a loaded 9-mm pistol in Witham’s pocket and a second handgun in his motel room.

At the time of their arrests Witham and Gray were on bail for other charges.

If convicted, Witham faces up to 30 years in prison and a fine of up to $50,000 on the drug trafficking charge and up to five years in prison and a fine of up to $5,000 on the gun charge.

Gray faces up to 10 years in prison and a fine of up to $20,000 if convicted.