Members of the Department of Justice’s secretive Community Relations Service or CRS were spotted on the ground this morning in Charlotte North Carolina at the Democratic National Convention by Breitbart.com editor-in-chief Joel Pollak.

Last week, Breibart News’ Jeremy Segal–a.k.a. Rebel Pundit–posted a video showing CRS members assisting anarchist onto a bus after a protest. Segal and other witnesses also saw a CRS member high-fiving one of the protesters.

The group’s mission is described as “mediation,” but calls to the Justice Department by Breitbart News last week asking about who had asked for the mediation and who were the parties to that mediation went unanswered. Instead the Department of Justice issued a boilerplate statement. 

The CRS made headlines a few months ago when it was used in Sanford Florida to aid protesters and oust the local sheriff in the wake of controversy over the death of teenager Trayvon Martin. According to sources in Sanford, a CRS member is still stationed there.

After tepid protests last week at Republican National Convention in Tampa, protesters are expected to make more of a stand at the DNC. The role of the CRS is still unclear.