No. 30. Prisons. 1967. "grave prison offence" means any offence specified in section 39 of this Ordinance; "junior prison staff" means temporary prison officer, a prison officer who is not appointed prison officer Grade I and an Assistant Matron. "juvenile prisoner" means any prisoner under the age of sixteen; "lock-up" means any house, building, enclosure or place declared to lie a lock-up under section 4 of this Ordinance; "'Medical Officer" means the Medical Officer assigned under section 6 of this Ordinance; "Minister'" means the member of the Executive Coun- cil for the titlie being charged with the responsibility for Social Services; "minor prison offence" means an offence against Prison Rules or against prison discipline other than a grave prison offence; "prison" means any .house, building, enclosure or place declared to be a prison under section 3 of this Ordinance; "prisoner" means any person, whether convicted or not, under detention in any prison; "prison officer" means any person holding an office in' the Prison Department; but it shall not include the Superintendent, the Assistant Superintendent and the Medical Officer; "Prison Rules" means any rules made under section 53 of this Ordinance; "prison staff' means all persons holding an office in the Prison Iepartment; "Prison Standing Orders" means orders issued by the Superintendent of Prisons under section 8 of this Ordinance; "prohibited article" means- (a) any intoxicating liquor, drug, tobacco, money, clothing, provisions, letter, tool or any article likely to be prejudicial to the life or safety of any person, or to facilitate any escape from prison or to be used for purposes prejudicial to 'prison discipline;