NORWICH – Prosecutors are considering additional drug charges against an accused heroin dealer after they failed to reach a plea-agreement in court Monday.

Appearing in court for a pretrial hearing, Adam J. Daring has previously pleaded not guilty to third degree criminal sale of a controlled substance, a felony.

Prosecutors told the court Daring sold heroin to a confidential informant on three separate occasions, all while he was being video recorded by police.