DOVER — Heroin and crack cocaine were located during an administrative search warrant execution by Delaware Probation and Parole Tuesday night, authorities said.

Dover Police assisted the operation at 8:39 p.m. in the 100 block of Thames Drive and arrested resident Martin Green, 29, and Alexis Jones, 29. The search yielded 4,225 bags of heroin, 28.1 grams of crack cocaine, drug paraphernalia, and $16,337 in drug proceeds, police said.

Possession charges included heroin, with intent to deliver heroin, crack cocaine and intent to deliver crack cocaine, second-degree conspiracy and drug paraphernalia.

Mr. Green was held at Sussex Correctional Institution in Georgetown on $81,600 secured bond and Ms. Jones was released on $81,600 secured bond.