To provide a crime prevention tear spray that allows self-defence for protecting the safety in the body to be exercised smoothly and to be practiced reliably against a crime of violence to a woman who is physically weak and a girl as a victim of crime is becoming younger and younger, such as abduction, confinement, and sexual violence, and can be constantly carried easily.

The large part of the bottom part of a body is composed of a flat surface, the body is adhered and fixed onto one plane in a normally carried object that a user selects arbitrarily by a double-sided adhesive tape for solving the above problem. Further, by an arbitrary judgment of a user, a ring is passed through a key holder hole without using any double-sided adhesive tape also for the crime prevention tear spray as a key holder.