5 oz Pepper Spray- Police Strength OC-17 Magnum Mace Red Pepper Spray wth UV Dye. UV Identifying Dye to help identify your attacker. Safety Top. Police Magnum OC-17 Pepper Spray offers the most powerful concentration of pepper spray allowed by law. This is the same spray used by police officers. Each unit also includes UV dye for later identification of the perpetrator by law enforcement.