1. A method for detecting a fire shot event in a weapon, the method comprising: measuring with a measuring device a shock or vibration of the weapon whose magnitude changes in time as a result of a fire shot event so as to obtain a measurement signal, and comparing the measurement signal with a predetermined time-domain fingerprint for said shock or vibration of the weapon, which fingerprint is characteristic of a way said shock or vibration of the weapon varies in time upon a fire shot event, in order to confirm an occurrence of a fire shot event in case said measurement signal and said fingerprint match, wherein the measurement signal and the predetermined fingerprint signal are represented by vectors, and the comparison is based on a difference between said vectors.