Section 20:

DISTRICT AND INTERMEDIATE COURTS (CRIMINAL JURISDICTION) ACT, No · PART I: PROCEEDINGS TO OBTAIN THE ATTENDANCE OF A PARTY CHARGED BEFORE MAGISTRATE

consolidated text (as at 2011, amended since). juris shows the text as it was consolidated; it does not confirm that this is the law in force today.

20. Cause of arrest to be notified to prisoner A private person who apprehends any other person without a warrant shall, prior to the arrest, notify to the party the cause for which he arrests, and shall require him to submit, except where the party is in the actual commission of any offence, or where fresh pursuit is made after any such party who, being disturbed, makes his escape.

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Questions this section answers

If a private person arrests me, must they tell me why before arresting me?