Code Quasar
this transmission signal was generated by the Alliance, and provided to those pirate and privateer vessels who were working for the Alliance. The Code Quasar signal, when verified against the active database of independent ships working for the Alliance, provided a measure of security and autonomy whenever a marauding vessel was encountered near Alliance-held space. Note that the Star Wars Adventure Journal, Issue 2 indicates that this signal was a modified version of the Code Black Hole signal, and assured that the passengers aboard a ship under attack would receive just treatment upon surrender.