Marilyn Mosby took it upon herself (May 1st) to file Direct Action charges against the Baltimore Six and issue arrest warrants.  As such she has 30 days to bring a formal indictment outlining the specific evidence, which supports the charges against each of the officers.

BALTIMORE – Defense attorneys for the officers charged in the Freddie Gray case anticipate their clients will be indicted by a grand jury in the next two weeks.
The attorneys have asked that a stenographer be appointed to transcribe the grand jury proceedings or that an audio tape recording be made. They claim misinformation was included in the original charging documents, underscoring the need to know what prosecutors tell grand jurors.
“It is imperative to have access to the comments of the presenting prosecutor and the instructions pertaining to the applicable law made by the prosecutor to the grand jurors,” states the motion, which was filed Monday.
The Baltimore grand jury includes up to 23 people who hear cases presented by prosecutors over the course of four months.
Unlike high-profile cases in Ferguson, Mo., and Staten Island, N.Y., Baltimore State’s Attorney Marilyn Mosby chose to file charges against the six officers involved in the arrest and transport of Freddie Gray, rather than leave the decision up to a grand jury.
That makes a Baltimore grand jury indictment more of a procedural step to move a case filed in District Court to the Circuit Court, where more serious criminal cases are heard. The indictment typically occurs before the preliminary hearing for the District Court case, which for the officers is set for *May 27.  (read more)

*Important Strategic Note*  Memorial Day is Monday May 25th.