Teacher Amy Gehring has admitted having sex with a 16-year-old pupil, saying she felt "quite stupid for all of the things I did". The 26-year-old Canadian was acquitted earlier this month of indecently assaulting two brothers at a Surrey comprehensive where she worked.

But in an interview with the BBC Radio 4's Today programme she has now admitted she slept with a boy at a previous school in Surrey.

Ms Gehring also says she was too drunk to remember if she had slept with a 15-year-old boy at her last school.

Her admission has revived concerns over the system for monitoring supply teachers and whether the agencies that employ them are adequately regulated.

After the trial, it was revealed that Ms Gehring had been investigated before, identified as a "risk" to children, but still allowed to work in another school.

Now Ms Gehring has confirmed some of the substance of the first investigation by admitting she did have sex with a 16-year-old pupil on one occasion.

She said: "These boys weren't stupid. They knew what they were doing.

'Became close'

"I know the law's there to protect children from criminal activity. They knew what they were doing."

"There is a difference between when I was 15 at home in Canada and 15-year-olds today here.

There's a big difference.

"At my first school there were 11-year-old kids that were telling me they were having sex."

Ms Gehring said she was embarrassed and ashamed by her behaviour.

"I put myself into situations I shouldn't have at parties because I became close to them.

System reform

"I was away from my family in a different country and I was spending most of my time with them. I became one of the kids basically."

It was at her first school that Ms Gehring said she was "too drunk" to remember having slept with the 15-year-old boy.

"The chances are that I could have, but I can't remember doing it. That sounds really bad."

Shadow education secretary, Damien Green, told the Today programme the system dealing with complaints against teachers needed to be reformed.

He said part of the problem centred on the numbers of supply teachers used in schools.

"I think what you can do is have a system which investigates problems very, very quickly.

"What we have is a rather slow cumbersome, bureaucratic system which can't cope precisely because there are too may supply teachers in the system."

[BBC]