SIGNATURE By N., Pam M.S. - April 13, 2013 something that identifies a certain criminal has been at the scene of the crime. It has no part in the criminal act but is a clue to his identity. SIGNATURE: "The criminal left his usual signature, red flower petal at the scene of the crime." Related Psychology Terms INTOXICATION DEFENSE CRIMINAL ANTHROPOLOGY CRIMINAL PROFILING DEFENSIVE IDENTIFICATION PSYCHOGENDER MOTION PARALLAX PREMEDITATION CONTROL QUESTION TEST (CQT) BALINT'S SYNDROME AGEUSIA (AGUEVIA) Cite this page: N., Pam M.S., "SIGNATURE," in PsychologyDictionary.org, April 13, 2013, https://psychologydictionary.org/signature/ (accessed February 24, 2020).