ALBANY, N.Y. — Police made the largest drug bust in the 46-year history of New York’s Organized Crime Task Force, authorities said Friday.

They seized more than 33 kilograms of heroin, valued at more than $13 million, and 2 kilograms of fentanyl. Police also arrested 25 people connected to the drugs across New York, New Jersey, Pennsylvania and Massachusetts.

“We cannot and we will not allow drug dealers to peddle death in our communities,” said Attorney General Eric Schneiderman.

Traffickers used heroin addicts as human guinea pigs to test the quality of the heroin, officials said. It was allegedly laced with roach killer, chicken anesthetic, nail polish remover, novocain and fentanyl to add to the bulk and value.

“These folks know they’re dealing death,” Schneiderman said. “They’re proud of the fact.”

The ring allegedly brought drugs in from Mexico via cars and busses with hidden compartments. One hidden compartment in a car only opened after someone turned on the windshield wiper, flicked on the blinker and then opened a window.

Police also seized 300 grams of cocaine, two semi-automatic handguns and eight vehicles – four of which had hidden compartments for drug smuggling.

Eight of the people arrested are being charged as major traffickers. They face life in prison if convicted. Seventeen others face 8-25 years if convicted.

“This was a completely soulless operation,” Schneiderman said.