5. Proof of application of Convention

Where in the course of any proceedings under this

Act in respect of a grave breach of any of the Conventions a question arises under section 2 of this Act relating to the circumstances in which that Convention applies in relation to the aforesaid breach, a Certificate under the hand of the

Secretary to the Ministry of the Minister in charge of the subject of Foreign Affairs stating that a Convention applies in relation to a particular situation, shall be admissible in evidence and shall be prima facie evidence of such fact.