Probation officers about to search a Butler apartment saw the evidence they needed fly out the window when a man and woman tossed out 128 bags of suspected heroin.

The pair of Butler County probation officers went to the home in the 400 block of East Pearl Street on Friday to conduct a compliance check at the home of 28-year-old Rocco V. Colonello, authorities said.

But before the officers could get inside, Colonello and a friend, 20-year-old Taylor L. Wilcox of Muddy Creek Township, tried to get rid of incriminating evidence, according to court documents. They allegedly threw the bags of heroin out a second-story window.

The officers got into the home and found both occupants as well as more drugs and contraband, said county Detective Tim Fennell, who heads the Butler County Drug Task Force.

Seized from the apartment, documents said, were Ecstasy pills, the prescription drug lidocaine, syringes and hypodermic needles.

Additionally, a search of Colonello turned up a Ziploc bag containing suspected methamphetamine and $581 in currency.

“Colonello told the (probation officers) he did not use heroin, only sold it to buy methamphetamine,” charging documents said.

Authorities said they combed through Wilcox’s back pack and found two bags of suspected heroin and more hypodermic needles.

District Judge Peter Shaffer arraigned both suspects on felony and misdemeanor drug possession charges. Colonello and Wilcox were placed in the Butler County Prison on $100,000 and $50,000 bail, respectively, following arraignment.

Court records, meanwhile, showed Colonello, already a convicted drug felon, was wanted by state police vice officers on an unrelated arrest warrant issued as part of a 2014 felony drug investigation in Cranberry Township.