The traditional theory limited the possibility of expectation to the category of responsibility for an offence, which neglects its function of preventing an act from being illegal.

传统理论把期待可能性局限于有责性的范畴，没有认识到期待可能性的违法阻却作用。

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Administrative omission is an illegal administrative act of a administrative subject which do not perform its active obligation.

行政不作为是行政主体有积极实施行政职责的义务而不实施的违法行政行为。

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Article 29 Where an illegal act is not discovered within two years of its commission, administrative penalty shall no longer be imposed, except as otherwise prescribed by law.

第二十九条违法行为在二年内未被发现的，不再给予行政处罚。法律另有规定的除外。

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However, the Medicines Act has it as a prescription only drug, which means its unauthorised supply is illegal.

BBC: Drugs: It's a class issue