A Fall River woman is facing charges that she dealt heroin out of her Jeep while her two young children were with her.

Quincy police had been inves­tigating Angela Tantillo, 26, also known as Cocoa, over the past few months in suspected heroin dealing there, police said. Tantillo was arrested Wednesday and arraigned Thursday in Quincy District Court on trafficking charges. A not-guilty plea was entered on her behalf; her lawyer could not be reached.