For a fee, police say, men were escorted from the lobby of a downtown Silver Spring hotel to Room 506 for group sex.

Such transactions, authorities say, aren’t unheard of. But in this case, the man collecting the money was a federal security manager at Dulles International Airport, according to a court papers and authorities. Police said Wednesday that the suspect, Bryant Livingston, is charged with five counts of running a prostitution scheme. He is no longer employed by the federal Transportation Security Administration.

Reached for comment Wednesday, Livingston, 39, said that he is innocent and that the TSA has a vendetta against him for filing a racial discrimination complaint with the Equal Employment Opportunity Commission.

Livingston said that he posted an ad on Craigslist for a swingers party and that no one paid him to take part. “This was a swingers event, and the charges are absolutely false,” he said.

A TSA spokeswoman said that Livingston, of Manassas, was hired in 2002 and that all employees submit to background checks. She said his employment expired at midnight Feb. 15. “The alleged off-duty conduct of this individual is unacceptable, and in no way reflects the integrity and professionalism” of more than 50,000 security officers, TSA said in a statement.

The case dates to the night of Feb. 15, when police were called to a Crowne Plaza Hotel. A manager told them about suspicious activity she had seen in the lobby and outside Room 506. Officer Paris Capalupo found that the room was registered to Livingston, who paid cash, according to arrest records.

The hotel manager told Capalupo that men had been gathering in the lobby. Livingston, who had key card to access the elevator, would come and get them, police said. She also said Livingston had been a guest in the past and that groups of people had entered and exited his room. By mid-February, she “became suspicious because this behavior is not typical of Crowne Plaza Hotel guests,” Capalupo wrote in an arrest affidavit.

The manager and police officers went to Room 506, where she knocked on the door, court papers say. Livingston opened it, and the manager told Livingston that she thought prostitution was going on inside. “Livingston advised that no such thing was occurring,” Capalupo wrote.

Livingston invited the manager and officers into the room, where they “observed 11 people inside the room to include three naked females and four males attempting to get dressed,” Capalupo wrote. “Multiple people were laying on the two beds, and other people were sitting in chairs and standing in the room.” One man said he paid $100, according to police.

It wasn’t the first time that prostitution allegations involving Livingston had surfaced. A Department of Homeland Security official told police that a 2009 complaint alleged that Livingston was running a prostitution scheme, Capalupo wrote.

Livingston said there was nothing to the 2009 incident. “I was a visitor at a hotel, and I left,” he said. It was unclear whether that allegation led to any criminal charges or discipline at TSA. A TSA spokeswoman would not immediately comment on the 2009 incident.