Counter-terrorism

Anti-terror bollards outside theatre

Radical preacher Choudary has assets frozen

Prizes for Russian extremism tip-offs

'Driverless bomb' accused face retrial

Young people anxious from terror coverage

How Norway reacted to a terror attack. Video, 00:01:49How Norway reacted to a terror attack

Should a university teach a killer?

Netherlands foils 'major terror attack'

Terror-trained ambulance staff doubled. Video, 00:01:36Terror-trained ambulance staff doubled

Security concerns over Choudary release

Terror raids over 'extremist activity'

Net giants 'must wipe extremism in hour'

Men 'planned driverless car terror attack'

Terror arrest boy, 16, released

Woman charged after explosives raid

Man in court after explosives raid

Small websites 'swamped by extremism'

Man jailed for plot to kill Theresa May

Man guilty of plotting to kill PM

Woman arrested amid terror funding raid

Apps face fine if terror lingers for hour

Boy, 15, in court on terror charges

Body scanners to screen LA subway riders