A Concord Township man convicted 21 months ago for growing marijuana at his home was arrested again Tuesday after state police and county probation officers found he was back in the marijuana cultivation business at his Boydstown Road house, authorities said.

Paul R. Homa Jr., 54, faces a pair of felony charges in connection with the discovery, which included numerous guns.

Already a felon, Homa is barred by state law from possessing any firearms.

Police said a Butler County probation officer stopped at Homa’s residence about 10 a.m. for a routine home visit as part of the defendant’s probation for the previous case when he noticed several marijuana plants.

A trooper later called to the home noted, in charging documents, the pungent smell of marijuana upon entering the home.

Authorities reported finding at least nine plants that were hanging and drying in the house and in an out building, according to court documents. Other processed marijuana was found in plastic bags and on a plate in the kitchen.

A search of the home turned up eight long guns and a loaded .357-caliber revolver.

District Judge Lewis Stoughton arraigned Homa on a charge of possession with intent to deliver a controlled substance and felons not allowed to possess firearms, both felonies.

He also is charged with misdemeanor counts of possessing a controlled substance and drug paraphernalia.

He remains in the Butler County Prison on $50,000 bail while awaiting a preliminary hearing Tuesday at Stoughton’s office in Chicora.

Homa in April 2013 pleaded guilty to felony drug possession after state police in 2011 found marijuana growing outside his home.

According to court records investigators found marijuana embedded in a pickup truck when they visited the defendant’s home while looking for a different person who was wanted on a warrant.

A subsequent search of the property followed, uncovering the outdoor grow operation and indoor animal collection.

Among the items seized from the defendant’s house were a mounted ruby throated humming bird, a handful of mounted timber rattlesnakes and dozens of wildlife animal skulls and antlers.

While much of the wildlife allegedly found in Homa’s house is legal to hunt and to own, court records indicate that the defendant did not have proper licenses.

In addition to possession with intent to deliver marijuana, Homa pleaded guilty to unlawful taking of big game and possession of game or wildlife. And, in an unrelated case, he also pleaded guilty to driving under the influence of alcohol.

Homa was sentenced to 72 hours to 6 months in the county prison. He ended up serving the minimum, jail records showed.

Following his release, he was placed on four years in the county’s Intermediate Punishment Program, with the first six months on house arrest with electronic monitoring.

He was returned to the county jail on July 9, 2013, and spent 14 days there for a probation violation.

It was not immediately known if Homa has an attorney. Kenneth Harris, his attorney in the 2011 case, did not return a telephone call Wednesday.