Restrictions on surrender of persons to foreign States
7.—(1)  A person shall not be liable to be surrendered to a foreign State if the offence to which the requisition for his surrender relates is, or is by reason of the circumstances in which it is alleged to have been committed or was committed, an offence of a political character.
(2)  A person shall not be liable to be surrendered to a foreign State unless provision is made by a law of that State, or by an extradition treaty in force between Singapore and that State, by virtue of which the person shall not, unless he has been returned, or has had an opportunity of returning, to Singapore —
(a)be detained or tried in that foreign State for any offence that is alleged to have been committed, or was committed, before his surrender other than the offence to which the requisition for his surrender relates or any other offence of which he could be convicted upon proof of the facts on which that requisition was based; or
(b)be detained in that foreign State for the purpose of his being surrendered to another country for trial or punishment for any offence that is alleged to have been committed, or was committed, before his surrender to that foreign State other than an offence of which he could be convicted upon proof of the facts on which the requisition referred to in paragraph (a) was based.
(3)  A person who is held in custody, or has been admitted to bail, in Singapore in respect of an offence that is alleged to have been committed in Singapore, or is undergoing a sentence for a conviction in Singapore, shall not be liable to be surrendered to a foreign State until he has been discharged from custody, or the recognizances upon which he was admitted to bail have been discharged, as the case may be, whether as a result of his acquittal, on the expiration of his sentence or otherwise.
(4)  A person shall not be liable to be surrendered to a foreign State in respect of an offence if he has been acquitted or pardoned by a competent tribunal or authority in any country, or has undergone the punishment provided by the law of, or of a part of, any country, in respect of that offence or of another offence constituted by the same act or omission as that offence.