Nullum crimen sine lege

Czech Republic

Czech republic - Charter of Rights 1992 (1998) EN

CHAPTER ONE GENERAL PROVISIONS

Article 2
(2) State authority may be asserted only in cases and within the bounds provided for by law and only in the manner prescribed by law.
(3) Everyone may do that which is not prohibited by law; and nobody may be compelled to do that which is not imposed upon her by law.

Czech Republic - Constitution 1992 (2013) EN

Chapter One Fundamental Provisions
ARTICLE 2
State authority is to serve all citizens and may be asserted only in cases, within the bounds, and in the manner provided for by law.
All citizens may do that which is not prohibited by law; and nobody may be compelled to do that which is not imposed upon her by law.

Czech republic - Criminal Code 2010 (2011) EN

PART ONE GENERAL PART
CHAPTER I COMPETENCY OF CRIMINAL LAWS
Division 2 Time Applicability

Section 2 Criminality of an Act and Time of its Commission
(1) Criminality of an act shall be assessed in accordance with the Act effective at the time of its commission; it shall only be assessed pursuant to a later Act if it is more favourable to the offender .
(2) If the law is changed during the commission of an act, the law effective at the time of completion of the conduct by which the act was committed shall be applicable.
(3) In case of later amendments of the law effective at the time of the completion of the conduct by which an act is committed, the most lenient law shall apply.

PART ONE GENERAL
CHAPTER II CRIMINAL LIABILITY
Division 1 Fundamentals of Criminal Liability

Section 12 Principle of Legality and Principle of Subsidiarity of Criminal Repression
(1) Only criminal law shall define criminal offences and prescribe criminal penalties that may be imposed for their commission.

Czech republic - Criminal Procedure Code 1961 (2012) EN

PART ONE
GENERAL PART

CHAPTER I
COMPETENCY OF CRIMINAL LAWS

Division 2
Time Applicability

Section 2 Criminality of an Act and Time of its Commission
(1) Criminality of an act shall be assessed in accordance with the Act effective at the time of its commission; it shall only be assessed pursuant to a later Act if it is more favourable to the offender.

PART ONE
GENERAL PART

CHAPTER I
COMPETENCY OF CRIMINAL LAWS

Division 2
Time Applicability

Section 3 Applicability of the Law Effective at the Time of Decision Making
(1) An offender may only be imposed a sentence admissible by law effective at the time of deciding on the criminal offence.

Rome Statute

Article 22 Nullum crimen sine lege

1. A person shall not be criminally responsible under this Statute unless the conduct in question constitutes, at the time it takes place, a crime within the jurisdiction of the Court.

2. The definition of a crime shall be strictly construed and shall not be extended by analogy. In case of ambiguity, the definition shall be interpreted in favour of the person being investigated, prosecuted or convicted.

3. This article shall not affect the characterization of any conduct as criminal under international law independently of this Statute.