Singaporean Navy cadet Yong Benedict Ang, 22, was sentenced on Thursday afternoon for an incident on the ADFA campus in May last year.

Mr Ang had come back to his dormitory block in the early hours of Sunday, May 6, after a night out in Civic.

The victim was highly intoxicated, and had been given a bucket and put to bed by her friends.

Fellow cadets wrote on a whiteboard in the hallway that she was drunk and may need looking after.

Knowing she was drunk, Mr Ang went into her room and asked if she was awake, but received no reply.

He closed the door, and lay on the bed beside her.

Mr Ang began rubbing her shoulders, before grabbing her face and attempting to kiss her.

He then blocked her nose, preventing her from breathing.

She was forced to open her mouth, and he put his tongue inside.

The act was described as a ''very significant breach of trust'', leaving the victim with feelings of ''fear, disgust, and powerlessness''.

Mr Ang was found guilty by a jury of one count of an act of indecency earlier this year, but was cleared on a second count.

Justice John Burns said Mr Ang had suffered hardship due to the crime. He had been kicked out of ADFA and suspended on half pay from the Singaporean Navy.

Justice Burns said the proceedings had ''besmirched your good name'', and brought Mr Ang shame, even if he had not admitted his guilt.

The court heard evidence of Mr Ang's good character, and no evidence of bad character.

He was top of his Singaporean cadet school, winning much praise from his superiors, and earning him a scholarship with ADFA.

The court heard the offence was ''not trivial'', but was not the most serious seen by the court.

The fact Mr Ang was in a new country, significantly different to where he had grown up, may have had a ''disinhibiting effect'' on the cadet, Justice Burns said.

A non-conviction order was made and Mr Ang was put on an 18-month good-behaviour order.

The court heard he may be discharged from the Singaporean Navy and was ''highly unlikely'' to be admitted back into ADFA.