Article 9
The applicable law at the time when the offence is committed shall prevail. In the event of a change in the law applicable to a given case prior to a final
judgement, the law more favourable to the person being investigated, prosecuted or convicted shall apply. When a new law no longer criminalizes an act or
omission, but a perpetrator has been convicted by the final judgment in accordance with the prior law, the enforcement of the criminal sanction shall not
commence or, if it has commenced, shall cease. If the new law only extenuates the penalty, the court that issued the final judgment, upon the request of the
Public Prosecution or the convicted, may quash the judged penalty according to the new law.
Article 10
Notwithstanding the provisions of the preceding Article, if a law is issued to criminalize an act or omission or to enforce more severe punishment, and it is
temporary or due to exceptional and urgent circumstances, the forfeiture of this temporary period or exceptional and urgent circumstances shall not under
any circumstances prejudice the enforcement thereof upon any offence occurring during such period or any sentence previously served as long as the new
law does not stipulate to the contrary.
Article 11
The new law shall apply to the continuous, successive or habitual offences committed prior to its coming into force, if the offences continued to be
committed during the effective period of this Law.
Article 12
Where a new law is issued which amends the provisions of recidivism, or plurality of offences, the convicting provisions issued prior to its application shall
apply.
Article 13
The provisions of the present Law shall apply to any person who commits, within the jurisdiction of the State of Qatar, an offence stipulated therein.
An offence shall be deemed to have been committed within Qatar jurisdiction, if one of the offence constituent acts or if the consequence of that act is
realized or is intended to be realised thereof.
Article 14
The provisions of the present Law shall be applicable to offences committed or omitted onboard ships and airplanes registered in, or owned, or bearing the
flag of the State of Qatar, irrespective of wherever they are physically located.
Article 15