AUGUSTA — A mother and son from Concord, New Hampshire, remain behind bars in Kennebec County jail on charges of trafficking in heroin.

Ruth Stafford, 58, and Christopher Stafford, 32, were arrested following a traffic stop on Saturday on Interstate 295 in West Gardiner.

According to an affidavit filed with the case in the Capital Judicial Center, the vehicle was pulled over for a suspected speeding violation.

A search of the vehicle resulted in police locating 4.2 grams of heroin, the affidavit says.

The duo was taken to Kennebec County jail with bail set at $40,000 cash each.

At an initial court appearance on Monday, Justice Robert Mullen agreed to Assistant District Attorney Francis Griffin’s request for bail of $25,000 cash or $50,000 worth of property for each.

Conditions of bail prohibit the two from having contact with one another and from possessing illegal drugs.

Attorney Lisa Whittier, who represented Ruth Stafford, said the prohibition of contact with each other could be a significant problem since the two live in the same home.

“If and when the defendants are released and they want to revisit that issue, they can do that,” Mullen told her.

The next hearing for each is set for Sept. 15.

Betty Adams — 621-5631

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Twitter: @betadams