Lord Janner has failed in his challenge of a magistrate’s ruling that he should appear in court in person to face historical child sex abuse charges.

High Court judges ruled that it had been lawful to order him to come to Westminster Magistrates Court despite suffering from severe dementia.

Lord Janner is due to appear at the magistrates court on Friday, following a ruling from District Judge Howard Riddle last week.

A warrant for his arrest could be issued if he does not arrive at the court for the 10am hearing.

The 87-year-old peer is likely to be charged with more than 20 counts relating to allegations of historic child sex abuse dating back to the 1960s, 1970s and 1980s.