--Ecer and Zeyrek v. Turkey, ECHR, 27 February 2001 (para. 29). ***** The Court recalls that, according to its case-law, Article 7 embodies, inter alia, the principle that only the law can define a crime and prescribe a penalty (nullum crimen, nulla poena sine lege) and the principle that the criminal law must not be extensively construed to an accused’s detriment, for instance by analogy. From these principles it follows that an offence and the sanctions provided for it must be clearly defined in the law. This requirement is satisfied where the individual can know from the wording of the relevant provision and, if need be, with the assistance of the courts’ interpretation of it, what acts and omissions will make him criminally liable. --Baskaya and Okçuoglu v. Turkey, ECHR, 8 July 1999 (para. 36). Inter-American System The Court considers that crimes must be classified and described in precise and unambiguous language that narrowly defines the punishable offense, thus giving full meaning to the principle of nullum crimen nulla poena sine lege praevia in criminal law. This means a clear definition of the criminalized conduct, establishing its elements and the factors that distinguish it from behaviors that are either not punishable offences or are punishable but not with imprisonment. Ambiguity in describing crimes creates doubts and the opportunity for abuse of power, particularly when it comes to ascertaining the criminal responsibility of individuals and punishing their criminal behavior with penalties that exact their toll on the things that are most precious, such as life and liberty. Laws of the kind applied in the instant case, that fail to narrowly define the criminal behaviors, violate the principle of nullum crimen nulla poena sine lege praevia recognized in Article 9 of the American Convention. --Castillo Petruzzi et al. Case, I/A Court H.R., Judgment of May 30, 1999 (para. 121). ***** Decree Law No. 25,475, of May 6, 1992, defines terrorism at its Article 2 as an act that "provokes, creates, or maintains a state of anxiety, alarm, or fear in the population or in a sector thereof, performs acts against life, the body, health, personal liberty and security, or against property, against the security of public buildings, roads, or means of communication or of transport of any type, energy or transmission towers, motorized facilities or any other good or service, using arms, explosive materials or artefacts, or any other means capable of causing damage or grave disturbance of the public peace, or affect the international relations or the security of society and the State." This Decree expressly 64