- The investigation began earlier this week after the boy contacted police
- The teacher worked at a high school in Western Sydney
Police are urging parents to have "difficult conversations" with their children
A teacher will remain behind bars after being charged with 10 offences relating to the alleged repeated sexual assault of a boy on school grounds in Western Sydney.
Monica Young, 23-year, was arrested at Greenacre early Friday morning as detectives from the Child Abuse and Sex Crimes Squad raided her home for evidence.
Police seized her car and several electronic items from the property including a mobile phone and computer.
Investigators are analysing the woman's social media accounts.
In Parramatta Local Court today, Ms Young's lawyer Gazi Abbas did not apply for bail and it was formally refused.
She will remain in custody until her next court appearance on July 13 at Bankstown Local Court.
The ABC understands the alleged offences happened at the high school over a period of about a month.
It is unclear whether Ms Young taught the student, but both are from the same high school.
Detective Acting Superintendent Michael Haddow said the investigation began earlier this week after the 14-year-old boy contacted police.
"It is abhorrent — ultimately teachers have a significant responsibility — there is a significant power shift between a teacher and the student and a significant amount of trust," he said
Ms Young was taken in a police van to Bankstown Police Station for questioning and on Friday night was charged with 10 offences, including five counts of aggravated sexual intercourse with a child.
In a statement, the NSW Department of Education said it was aware of "the alleged incident involving the employee".
"The safety and wellbeing of children is the number one priority of the department."
The statement said it would be inappropriate to comment further, given the ongoing police investigation.
Detective Acting Superintendent Haddow said the incident was a timely reminder for parents to have open and honest conservations with their children on a regular basis.
"Kids 14, 15, 16 [years old], sometimes they act or think they are a bit older than they are but ultimately … they are vulnerable, they're easily led, they're easily influenced," he said.
"We would certainly urge parents to talk to their kids, be aware of who their kids are spending time with, be aware of who their kids are chatting with online — those difficult conversations are important to have."
Police are investigating whether there are other alleged victims and are urging anyone with information to come forward.