A Sydney Trains employee who pleaded guilty to obscene exposure after he was allegedly spotted with his hand down his pants on a western Sydney train has been convicted and slapped with a good behaviour bond.

Jason Stephen Deacon will need to “be of good behaviour” for the next 12 months and is required to keep up appointments with a psychologist following his sentencing at Parramatta Local Court last week.

Deacon, 36, was convicted of boarding a train in Blacktown on November 23 last year and was headed toward Lidcombe when a woman spotted him moving his hand in his crotch area.

Facts tendered to the court said the witness — who was under 21 — felt uncomfortable and was shocked because she believed the man was masturbating.

The facts said the woman continued to look down at her mobile throughout the journey to avoid confronting Deacon before she stood up to leave the train at Lidcombe.

It was there, as she went to leave the train, she said she saw the accused with his pants zipper undone and his genitalia exposed.

She told officers when the two made eye contact, Deacon attempted to cover himself.

She added she was disgusted and informed a female staffer at Lidcombe of the incident straight away.

Deacon also alighted the train at Lidcombe and entered a staffroom.

Following investigations, Deacon was asked to attend Parramatta Police Station two weeks after the incident where he refused to take part in an electronic interview.

He initially denied the incident occurred, and told police he had “caught the inner piece” of his pant material in the zipper.

A charge of committing an act of indecency toward a person was dropped during court proceedings.

Deacon was suspended with full pay, which totalled about $1000 a week, following the charges however his pay was suspended later in December and he resigned from the organsiation in January.