Article 4. § 1. If at the time of adjudication the law in force is other than that in force at the time of
the commission of the offence, the new law shall be applied. However, the former law should be applied if
it is more lenient to the perpetrator.
§ 2. If, according to the new law, the act to which the sentence pertained is subject to a penalty
whose upper limit is lower than the penalty imposed, this penalty shall be lowered to the upper limit of the
statutory penalty provided for such an act in the new law.
§ 3. If, according to the new law, the act to which the sentence pertained, is no longer subject to
penalty of imprisonment, such an enforceable penalty is commuted to a fine or to a restriction of liberty,
assuming that one month deprivation of liberty is equivalent to 60 times the daily fine or two months
restriction of liberty.
§ 4. If according to the new law the act to which the sentence pertained is no longer prohibited
under penalty, the sentence shall be expunged by virtue of the law.
Article 5. The Polish penal law shall be applied to the perpetrator who committed a prohibited act
within the territory of the Republic of Poland, or on a Polish vessel or aircraft, unless an international
agreement to which the Republic of Poland is a party stipulates otherwise.
Article 6 § 1. A prohibited act shall be deemed to have been committed at the time when the
perpetrator has acted or omitted to take an action which he was under obligation to perform.
§ 2. A prohibited act shall be deemed to have been committed at the place where the perpetrator
has acted or has omitted an action which he was under obligation to perform, or where the criminal
consequence has ensued or has been intended by the perpetrator to ensue.
Article 7. § 1. The offence is either a crime or a misdemeanour.
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