In this Part, unless the context otherwise requires -

"court" means any court exercising criminal jurisdiction and includes a court-martial;

"imprisonment" includes detention in Saint Patrick’s Institution and a place of detention provided under section 2 of the Prisons Act 1970, and "prison" shall be construed accordingly;

"prescribed" means prescribed by regulations made by the Minister under this Act;

"relevant date" means the date of conviction for the drug trafficking offence concerned;

"remission from the sentence" means, in relation to the sentence imposed on a person, the remission which the person may earn from the sentence under the rules or practice whereby prisoners generally may earn remission of sentence by industry and good conduct;

"sentence" includes a sentence of imprisonment and an order postponing sentence.