Business cards left on cars illustrating the sale of “controlled substances” led to the seizure of drugs, paraphernalia and a loaded handgun by the Pennsylvania State Police’s Undercover Vice Narcotics unit.

The cards stated sales would be conducted at the Lower Macungie Dog Park, 6806 Goor St., in the township, state police said. Undercover troopers with the unit then arranged a sale with Dawn Marie Trautwein, 48, of Boyertown, Berks County shortly before 1 p.m. Jan. 16 at the dog park.

Trautwein during the meeting with undercover officers allegedly used marijuana and offered various controlled substances for sale. She was then stopped in a traffic stop shortly after the meeting.

During the stop, officers seized 175 grams of individually packed marijuana in various weights and large amounts of the following: THC edibles, THC vape devices, marijuana rolls, THC wax, an unknown powder substance, capsules and tablets, and various paraphernalia, police said.

Troopers also seized a loaded, concealed handgun, according to police.

Trautwein is facing various drug offenses, including possession with intent to deliver a controlled substance, firearms not to be carried without a license, drug possession, marijuana possession, criminal use of a communications facility and possession of drug paraphernalia.

Pamela Sroka-Holzmann may be reached at pholzmann@lehighvalleylive.com. Follow her on Twitter @pamholzmann. Find lehighvalleylive.com on Facebook.