A teacher has been banned after he harassed a teenage girl.

Saghir Ahmed, 41, who spent ten years as a science teacher at Carshalton Boys' Sports College between 1998 and 2008, was told by the Teaching Agency he can never teach again following a hearing last month.

The Teaching Agency panel heard how in 2008, Ahmed was found guilty of harassment at Kingston Magistrates Court after he made inappropriate comments towards a 17-year-old girl.

Ahmed was given a three-month suspended prison sentence and a two-year restraining order.

The teaching panel concluded: "This was misconduct of a serious nature, falling significantly short of the standard of behaviour expected of a teacher.

"Although this occurred outside of school, it was relevant to teaching, having regard to the age of the girl concerned."

The school had received complaints about the 41-year-old after he made inappropriate comments to female teachers both in front of students and in private to a newly-qualified female teacher, but Ahmed assured the school it would not happen again.

The former teacher admitted his behaviour was unacceptable on various occasions as a teacher between 2002 and 2008, including inappropriately restraining a pupil.

Ahmed failed to report the restraining incident as he knew he was already subject to a final warning, which the panel said indicated "an element of concealment on Mr Ahmed's part". .

A final written warning was issued to Ahmed after he falsified a pupils exam grade in 2002.

Simon Barber, head teacher at Carshalton Boys, said: "On 20th March 2008, I was made aware by the Metropolitan Police that science teacher Saghir Ahmed was under investigation for the alleged harassment of two female students who attended a girls secondary school in a neighbouring borough.

"As a result, Mr Ahmed was immediately suspended from Carshalton Boys. Mr Ahmed resigned from Carshalton Boys on May 2nd 2008, before the disciplinary case could be heard by our Governing Body."

Ahmed will have to wait five years before asking for the prohibition order to be revoked, but will remain barred from teaching indefinitely if the application fails.