of the side that the pistol is resting while being x rayed this embodiment is extremely useful to security guards police airline pilots and military personnel because they could be issued holsters that are coded to a identification number which confirms that the holster assembly that corresponds with the identify of the carrier of the pistol and contains a pistol with a known serial number fig3 and 37 show a further embodiment of the invention whereby the rotatable pistol encapsulating holster cover 166 is adapted to enclose a illumination or laser module 238 affixed to the frame of the pistol by mounts 240 the pistol an illumination and or laser module 238 is protected from damage misalignment and environmental exposure when the rotatable pistol encapsulating holster cover 166 is closed and locked to the mountable holster shroud 168 fig3 and 39 show a further embodiment of the invention that provides a rotatable pistol encapsulating cover 166 wherein a pistol can be stored in a holster slide shroud 242 in a loaded condition with an operational trigger in this embodiment the holding member is a slide capturing element 246 a wave spring 252 is provided in the muzzle receiving space thereby replacing the bottom of slide stop bearing platform 172 and a rear of slide encapsulating and bear point space 244 is provided as shown in fig3 and 39 to receive the rear slide portion of the slide against the slide stop surface 180 fig4 and 41 show the insertion of a pistol into mountable holster slide shroud.