Three men accused of planning arson attacks against properties linked to Sir Keir Starmer are set to appear in court today.
Two Ukrainian men, Roman Lavrynovych, 22, Petro Pochynok, 35, and Romanian Stanislav Carpiuc, 27, are charged with conspiracy to damage property by fire.
The charges relate to incidents between April 1 and May 13 last year.
Mr Lavrynovych is also charged with damaging two properties by fire with intent to endanger life on May 11 and 12 last year.
On May 8, a car formerly owned by the Prime Minister caught fire.
Then, a fire was started on May 11 at the front door of a home converted into flats in Islington, north London, it is alleged.
The next day, another fire was lit at the Kentish Town home where Sir Keir lived before he moved into Downing Street.
There was allegedly damage to the property but nobody was hurt in the blaze.
The trial started at the Old Bailey on Monday, as the jury was sworn in to try the case.
Opening arguments will begin today, with Duncan Atkinson KC expected to start for the prosecution.
On Monday, Mr Lavrynovych denied two alternative charges of damaging property by fire “being reckless as to whether life is endangered” relating to the same two incidents.
All three men have pleaded not guilty to the charges.
The trial is expected to continue until the end of May.