"I'm very sorry you think I'm a pervert." The chilling letter a NSW teacher sent to a Year 6 student.

Warning: this post contains details of assault and child abuse, and may be distressing for some readers.

A horrifying letter written by a primary school teacher to a young student has revealed the ongoing harassment faced by a student he indecently assaulted.

Written in 1992, the teacher passed the letter onto his 11-year-old student after she complained of him inappropriately touching her at a netball game.

At the time, he was believed to be aged somewhere in his 30s and cannot be named for legal reasons.

After apologising to the little girl, he begs for her to forgive him and to be “friends again”, according to the letter published, in full, by the Sunday Telegraph.

“I’m very sorry you…think I’m a pervert. You couldn’t be further from the truth. I thought you all [other students] trusted me. I thought we could be friends,” he wrote to the girl.

"I didn't want everyone to know your [sic] my favourite student or to embarass [sic] you. It is very hard to get you by yourself as your friends are always around."

 He then went on to complain that everyone in Year 6 now "hates" him because of the allegations the girl made.

"If I've upset you in anyway please tell me. If it has anything to do with me putting my [arm?] around you at netball I'm sorry.

"Hope we can still be friends. You're still my favourite Yr 6 person."

The letter has only surfaced all these years later after he applied for a Working With Children Clearance to be given a job as a school bus driver.

During his time as a teacher, he worked at three primary public schools despite facing a number of complaints from little girls for inappropriately touching them. They varied from groping their breasts to hugging them without consent.

He was allowed to continue teaching until 1998, even though he was charged with four counts of indecently assaulting one girl, aged just nine.

The letter he wrote to the 11-year-old girl only warranted a charge with "improper conduct" due to state teaching laws and was warned not to touch children again.

The application to work with children was denied by the NSW Civil and Administration Tribunal, who believed the now 56-year-old man could still be a threat.

"The applicant does not appear during this time to have gained personal insight into the impact that his conduct has on the students," the Tribunal decided.

If this post brings up issues for you around sexual or emotional abuse, please call Bravehearts on 1800 272 831. If you are concerned about the welfare of a child you can get advice from The Child Abuse Prevention hotline on 1800 688 009 or visit http://www.childabuseprevention.com.au/ or call The Child Abuse Report Line on: 131 478 (Open 24 hours). You can also call Lifeline on 13 11 14.