Doberman. Getty Images

Video footage showed a Suffolk, Virginia couple engaging in explicit sex acts with their pet dog, a Doberman pinscher named Demon, court documents said. They are being investigated by federal law enforcement for committing "crimes against nature," according to The Virginian-Pilot. As of Tuesday, they were not charged.

Richard Allen Patterson, 46, was suspected to be in possession of illegal firearms, which led federal agents to further investigate his home. An Alcohol, Tobacco, Firearms and Explosives (ATF) agent discovered the graphic video footage on a computer in Patterson's home that reportedly featured Patterson and his wife, Christina.

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The Pattersons and the Doberman could be seen on the video in the couple's master bedroom. The computer, which had the video saved on an external hard drive, was reportedly seized.

ATF agents immediately alerted the Suffolk Police Department (SPD) of the alleged crime depicted in the video. Suffolk Detective Sgt. Gary Myrick filed for a search warrant to use the videos in his investigation of the alleged crime, according to Virginian news publication

Diana Klink, the director of media and community relations for the SPD, told International Business Times Tuesday, "The Suffolk Police Department does currently have an active investigation underway." The SPD is evaluating the case, but they weren't able to provide further comment on the allegations as the investigation is ongoing.

Deborah Gardner, a clerk for Suffolk General District Court, informed IBT Tuesday of the Patterson's conviction status for allegedly committing bestiality. Gardener said, "We do not have any charges for Richard or Christina Patterson in our system as of today."

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Although Patterson hasn't been convicted of bestiality, he was charged with possessing 17 illegal firearms in July. His collection included handguns, shotguns and military-style rifles. All firearms were reportedly shipped over state lines. According to The Virginia-Pilot, Patterson was also convicted on three separate charges in June. He was reportedly charged with perjury, larceny and forging public records.

Patterson's lawyer, Andrew Sacks, did not immediately return IBT's request for comment. However, Sack's did issue a statement to ABC affiliate WVEC Friday in which he claimed that the sexual lives of consenting adults are "off limits."

"Number one, we believe that what two consenting adults do in private, in their bedroom is off limits," Sacks told WVEC. "Number two, we don’t believe there was a valid law in place that even affected this at the time and number three we seriously question the police reaching out into this type of material when it has nothing to do with what they were searching for to begin with."

Beastiality falls under Virginia's "crimes against nature" penalty. According to Virginia Decoded, violators of this law include "any person [who] carnally knows in any manner any brute animal or voluntarily submits to such carnal knowledge."

If found guilty of the crimes against nature law, the violator could be charged with a Class 6 felony that is punishable by a $2,500 fine. A jail sentence could also be included in the violator's sentencing, but time served can vary from 12 months to 5 years.

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