Article 20: Protection in respect of conviction for offences.

Clauses:

• Clause 1: No person shall be convicted of any offence except for violation of a law in force at the time of the commission of the Act charged as an offence, nor be subjected to a penalty greater than that which might have been inflicted under the law in force at the time of the commission of the offence.
• Clause 2: No person shall be prosecuted and punished for the same offence more than once.
• Clause 3: No person accused of any offence shall be compelled to be a witness against himself.