Greenfield police and the Northwestern District Attorney's Anti-Crime Task Force partnered together and made three heroin arrests Tuesday night.
Authorities had a warrant for a Union Street home, where they found 130 bags of heroin and a small amount of prescription drugs.
Catherine Gralenski, 23, was arrested and faces multiple drug charges.
Kyle Hannum, 26, also faces a charge of being present where heroin is kept.
Police say they also found a 16-year-old in the home with heroin on her and believe she had asked Gralenski to take her to Holyoke to buy the heroin that was found.
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