For OC spray to affect a subject, it must be dispensed directly into the subject's eyes and nose. If the subject inhales the spray, the lining of the throat can swell, restricting breathing, and the larynx can be paralyzed temporarily. This induces uncontrollable choking, gagging, and gasping for breath, conditions exacerbated by burning and swelling of the mucous membrane, causing intense mucous flow. Before issuing OC spray, departments should establish written policy and procedures that govern its use. It is the department's responsibility to ensure that officers know how and when to use OC spray. One of the most important components of safely using OC spray is caring for individuals who have been affected by it. Particularly important are removing the subject from the contaminated area immediately and keeping the suspect upright and breathing deeply. Officers should help subjects rinse their faces with free-flowing, cool water. At the holding facility, officers should provide soap and cool water for removing the OC resins from the subject's skin. The subject's condition should then be monitored at all times. This article suggests and discusses subjects that should be taught in training officers in the use of OC spray. 3 notes