Aaron Z. Pross
Aaron Z. Pross (Photo provided by Baltimore County Police Department)

A Baltimore County police officer has been charged with malfeasance in office after detectives said he repeatedly engaged in and recorded sexual acts while on duty, including at least one video sent to a 16-year-old girl.

Aaron Z. Pross, 29, of Newark, Del., who was assigned to the Pikesville Precinct, is being investigated by his agency and could face additional charges. Detectives said he took more than 120 images and 20 videos engaging in sexual acts with himself and an adult woman while he was working.


In one video, according to charging documents, Pross was recorded engaging in lewd acts while the police radio is audible — including reports of "possible guns involved."

Pross admitted to detectives to taking pictures and video while on duty, according to charging documents. His attorney did not respond to calls for comment.

Pross is also accused of sending videos to a 16-year-old that showed him engaging in lewd behavior while in uniform. The girl's father contacted Baltimore County police, charging documents said.

The girl's parents told detectives in January that they searched her phone, finding emails from Pross, including one from November with an attachment of him masturbating in his patrol car while in uniform.

The girl told detectives she had met Pross through a phone app and knew he was a police officer, the documents said. Detectives confirmed he had been working the day the video was sent to the girl's email.

The same month, detectives searched Pross' cellphone, where detectives found numerous images and videos of Pross in uniform, in his patrol car, masturbating, documents said.

Pross' phone also contained images of him and an adult woman engaging in sexual acts in front of his patrol car, charging documents said. When detectives interviewed her, she said she met Pross on a website, and he told her he was a police officer who was married with a child. They texted several times before meeting in person to engage in sexual acts, the document said.

During one encounter in October 2012, they met at a Metro station in Pikesville before going behind a 7-Eleven. The woman told detectives that's where Pross handcuffed her, put her on the hood of the patrol car and took pictures. They then engaged in sexual acts, which were also recorded with her phone, the documents said, and were sent to Pross' phone.

She said they met several times while he was in uniform and on duty, the documents said.

Pross, a five-year veteran with Baltimore County, had his police powers suspended and was assigned to an administrative position when the investigation began in January, according to a release sent out by the department.

He turned himself in on a warrant Thursday. He posted $50,000 bail and was released from custody the same day.

Police said that they are continuing to investigate other allegations against Pross and that the case is being reviewed by the state's attorney's office.