translate English to French: Among the most important measures emphasis was given to the reform of criminal procedure, which has been in force since February 1991.  One of the laws making up this reform, Act No. 19,047, amended the Code of Criminal Procedure with the aim of establishing rights benefiting detainees, who had been in a weak position.
L'une des plus importantes est la réforme de la procédure pénale entreprise en février 1991; ainsi, la loi no 19047 a modifié le Code de procédure pénale de façon à garantir expressément certains droits aux personnes en détention.