EDUCATION chiefs have passed vital files to detectives investigating a teacher who began a relationship with a pupil and kept a sex dossier on other students.

It comes two years after school bosses were first alerted to the friendship between the girl and geography tutor Tyrone Mark, 39, who was later sacked and banned from teaching for life.

Mr Mark, who taught at The Arnewood School in New Milton, gave the teenager alcohol, condoms and even a key to his house.

As reported in the Daily Echo, he also wrote sexually explicit notes about many of her fellow pupils – some of whom featured in school photographs he kept at his home.

Earlier this year he was found guilty of professional misconduct and barred from teaching by the National College for Teaching and Leadership (NCTL).

At the time Arnewood issued a statement saying a police investigation had found no evidence of any criminal activity by Mr Mark.

But campaigning parent John Caine, of New Milton, submitted a Freedom of Information Act request and discovered that no such probe had taken place.

Officers have now launched an investigation after receiving a bundle of evidence, including the dossier compiled by the teacher.

A police spokesman said: “We have received files from The Arnewood School that were passed to them by the National College for Teaching and Leadership. The matter is now under investigation by our child abuse investigation team and it would not be appropriate for us to comment any further.”

Mr Caine, whose son Jonathan went to Arnewood and was taught by Mr Mark, has repeatedly accused the school of not following proper procedures.

He said: “It was the school’s responsibility to involve the police, and now the school will provide evidence to the police. Better late than never I suppose.”

Mr Mark was sacked from Arnewood following an internal investigation and was expelled from the profession in July this year.

Arnewood has repeatedly defended the letter it subsequently sent to parents, saying it had received written confirmation from Hamp-shire County Council that police were taking no further action. But neither Arnewood nor the county council has been able to produce the relevant letter or e-mail.

Last night a county council spokesman said the authority received an initial report from the school and alerted police, who subsequently said they would be taking no further action.

Mr Mark, who lived in Dorset, is understood to have taught at Arnewood for about ten years. He was summoned to a meeting with head teacher Chris Hummerstone in December 2012 and admitted giving the girl alcohol, condoms and his backdoor key. He also took her on two outings to Bath without her parents’ knowledge.

A spokesman for The Arnewood School said: “We have acted with complete propriety and in good faith in this difficult case, closely following established protocols.

“We will happily assist the police with any enquiries.”