The Metropolitan Police confirms Novichok was found in a blood sample taken from an officer.
Read more
Amesbury Novichok poisoning
Olga Ivshina
BBC Russian Service
IT systems at Wiltshire Council were hit by cyber attacks just after the first Novichok poisonings.
Read more
Mark Urban
Diplomatic and defence editor, Newsnight
A Newsnight-Bellingcat investigation maps the movements of a man thought to have directed the attack.
Read moreAhead of one-one-one talks with Vladimir Putin, Mrs May speaks about the Salisbury poisoning.
Simon Rowe is appointed an MBE for services to the community in Salisbury.
Read moreThe BBC was given access inside Porton Down, where some of the world's deadliest viruses are researched.
The parents of Det Sgt Nick Bailey, who was poisoned in the attack, criticise the planned series.
Read more
Charlie Rowley says an apology "would be great" but he cannot see the Russian president "taking the blame".
Read moreBut Charlie Rowley says he "didn't really get any answers" after the meeting, arranged by a Sunday paper.
Read more
Mark Urban
Diplomatic and defence editor, Newsnight
The Skripal poisoning shows Russia continues to manufacture chemical weapons, says the US state department.
Read more