Paragraph 4

arrest without warrant;

the issue, or in Scotland the grant, of a warrant for arrest;

the issue of a summons to appear, or in Scotland the grant of a warrant to cite;

the service of an indictment or other document specifying the charge;

except in Scotland, oral charge;

the making of an application under section 2(2) (tainted acquittals), 3(3)(b) (admission made or becoming known after acquittal), 4(3)(b) (new evidence), 11(3) (eventual death of injured person) or 12(3) (nullity of previous proceedings) of the Double Jeopardy (Scotland) Act 2011 (asp 16).