The eyelids quickly shut after exposure to OC, so the first body function affected is vision. It takes 10-20 seconds before the person can make the eyelid open. Losing visual contact with a suspect during arrest can be fatal, because the police officer's gun is one firearm that is present during every arrest situation. Thus, the first step should be to put their weapon into its holster. In addition, an alternative to standing there or moving away while vision is reduced is to close with and take hold of the suspect. The officer who recognizes an OC spray attack should extend the hand to deflect part of the spray, close the eyes, tilt the head down, hold the breath, close with the suspect in a controlled manner, use the CLAMP grip, and hold the suspect until backup arrives or the officer's vision clears. The CLAMP grip is a bend-arm lock that uses the leverage of both hands and then allows the officer to hold the suspect with one arm. Photograph