In the months before the attack on Westminster, Khalid Masood had been living in Birmingham. Here's what we know about him so far.
Fake Allegations By Schoolkids Including Those In Worcestershire
A new poll's found more than one in five school staff has had a false allegation made against them by a pupil - and a Worcestershire teacher with 22 years experience says she feels vulnerable as pupils ``twist things that are said''.
A further seven per cent said they've faced untrue claims from a student's parent or family member.
The Association of Teachers and Lecturers (ATL), which conducted the poll, said false allegations are blighting careers and putting added stress onto education workers.
More than a third of those polled (37.7 per cent) said that someone in their current school or college had had an untrue allegation made against them by a student, with a further 22.6 per cent saying a colleague had faced claims from a student's relative.
Others said that incidents were alleged to have occurred in places such as in one-to-one sessions in school or college, on a trip, or somewhere unrelated to the school or college environment.
A state secondary teacher in Worcestershire told ATL: "After 22 years in teaching I feel very vulnerable now, as pupils twist things that are said and make serious comments - they do not see the serious manner of their allegation when in fact it is their behaviour we are challenging.''
Asked what happened as a result of the most recent allegation they faced, half of those that responded (49.5 per cent) said that the claim had been dismissed, 30.2 said they continued working while it was investigated, 5.7 said they had been suspended and 4.2% had been subject to disciplinary action.
Just over 5 per cent of those questioned said they had been referred to a local safeguarding children's board over an allegation.
In a separate question, 7.5 per cent of the 187 people who responded said that the police had been notified of a claim against them.
Two men from Birmingham remain in custody after a search for accomplices to the Westminster terror attack has seen 11 arrested this week.
A total of seven people have now been arrested after raids in Birmingham over the terror attack in Westminster.
Jess Phillips MP has written to pupils at Holy Family Catholic Primary school, who were in Westminster yesterday.
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