Meaning of coercion in criminal procedural law the restriction or limitation imposed on their freedom to ensure the achievement of the aims of the process: the investigation of the truth and the performance of the criminal law. (Source: VÉLEZ MARICONDE, a., law of criminal procedure, volume II, Ed. Mark Lerner editor Córdoba SRL, 3rd Ed., 2 º reprint, 1986, p. 476 )