A Stop Comm order represented a formal request submitted to the government of the Galactic Republic (also known as the Old Republic). This order's purpose was to aid the Republic in situations where it needed to temporarily suppress information from public knowledge, particularly when the intention was to first inform the media.
In the year 25 BBY, Tyro Caladian employed a Stop Comm order. He did this to postpone, for a duration of three days, the public announcement regarding the seizure of the individuals known as the Slams.