Each handgun used in a training course must be in safe and working condition. No handgun may have any internal modification which compromises the safety of the weapon. Handguns are subject to inspection by the department's instructors prior to training and at any time during the training course. If the department's instructor finds a weapon is unsafe, then the instructor will reject the weapon for use in training and qualifications. The instructor may require any handgun be secured or removed from department premises.