A Baltimore City firefighter accused of being part of a major prostitution ring, will go on trial today.
Jamar Simmons was arrested last summer.
He was a Baltimore city firefighter for more than 10 years.
Police raided a warehouse on Pulaski street in west Baltimore, back in July.
Inside, they say they found ledgers, documents and computer equipment detailing the large-scale operation.
Simmons, had a previous sex trafficking charge back in 2010.
In that case he received probation before judgment , that allowed him to keep his job with the department; if he had pleaded guilty or been convicted, he would have lost it.