John Sawers believes both side in Brexit debate should support another plebiscite

Daniela Tejada calls on Westminster to clarify Matthew Hedges’ innocence of espionage

Durham University researcher in solitary confinement as he awaits court case

Online news sites claim man with ID for Alexander Petrov is in fact Alexander Mishkin

Headlines flag GRU’s global assertiveness and lack of concern in Moscow

British intelligence cyber specialists battled for months to clear hackers from Islam Channel

West ratchets up pressure amid determination to expose Moscow intelligence agency

Timeline of events in The Hague, where OPCW was verifying Skripal nerve agent

Seven alleged agents indicted in US after Dutch say cyber attack foiled

London steps up pressure on Moscow after Salisbury novichok poisoning

Nations examine offensive options amid allegations of Chinese intrusions

President hits out at former spy UK says was poisoned by Russian agents

Ukraine’s interior minister reveals link in talks with UK minister

Army reservist is alleged to have targeted defence contractor employees

Intelligence agencies look to invest in private sector with £85m venture capital fund

UK culture secretary attacks Moscow over misleading stories in wake of Skripal attack

Scope of alleged espionage against institutions in Switzerland wider than first thought

Facility tested for traces of nerve agent used in Skripals attack

Ruslan Boshirov and Alexander Petrov say they visited Salisbury only as tourists to see cathedral

European Court of Human Rights rules against GCHQ over collection of online data

Russian president says men not ‘criminal’ and urges them to tell their stories to the media

The UK’s partial triumph in the Skripal case may prove a high point in intelligence and diplomacy

Spies in Skripal case may have been identified but are unlikely to face justice

Microsoft-owned platform warned by Washington of ‘super-aggressive’ Beijing campaign

Telecoms equipment maker ZTE also prevented from providing the technology to local operators