By s 51 of the International Criminal Court Act 2001 (ICCA 2001) the UK has made genocide, crimes against humanity and war crimes as defined by the ICC treaty criminal offences against UK law triable in UK courts where such offences are committed by UK nationals or residents. (newlawjournal.co.uk)
A criminal offence triable only by the Crown Court. (solicitors.com)
Second, with respect to disclosure of the defence position on triable issues, my general practice is to again invoke the right to silence. (claytonrice.com)