A Manomet woman was among those arrested during an alleged drug buy near Walmart Thursday night.
According to Capt. John Rogers, detectives observed suspicious activity between people in two cars. In one car was the 21-year-old State Road woman and another passenger, a 22-year-old West Plymouth man.
Police allege they were buying narcotics from Brian Hall III, 22, of Alden Terrace and Shane Hakkila, 22, of Stafford Road. The buyers were allegedly found in possession of cocaine and oxycodone.
Hall and Hakkila were charged with distribution of a class B substance. The two buyers were charged with possession of a class B substance. All of those arrested were also charged with conspiracy to violate controlled substance laws.
All four were released on their own recognizance.