A WEST AUSTRALIAN woman extradited to Bendigo in May after using worthless cheques to steal a car and caravan has been sentenced in Bendigo Magistrates Court to two months' jail.

Tanya Ann Masters, 45, pleaded guilty yesterday to three counts of obtaining property by deception, three counts of making a false document and two counts of using a false document.

Her crimes sparked a week-long investigation that took Bendigo criminal investigation unit detectives more than 2500km across three states.

Masters last appeared in court late in May.

She was granted bail and returned to her parents' Mandurah home in WA.

Her co-accused and de facto partner, Shaun Johnston, remains in WA, where he will face fraud charges before being extradited to Bendigo.

In May, Detective Senior Constable Danny McQuinn told the court that Masters and Johnston had woven a web of deceit, sparking an interstate chase after handing over fraudulent cheques for a car and caravan.

The court was told Johnston deposited a worthless cheque for $300,000 into Masters' bank account on May 2.

The cheques were legitimate but linked to accounts with insufficient funds.

A bank receipt showing the $300,000 deposited into Masters' account was then used to prove the couple had funds to buy goods across Bendigo.

The couple used worthless cheques to buy a car from Bendigo Toyota valued at more than $19,000, and later a $52,000 caravan from Bendigo Windsor Caravans.

On May 15, warrants were issued for their arrest. The following day, detectives arrested them at a caravan park in Mandurah.

In May, defence lawyer Russell Kelly said there was no evidence his client had signed any of the cheques, and Masters believed Johnston was a wealthy man.

Appearing yesterday, defence lawyer Stella Stuthridge told the court Masters had six children and worked as a plant operator at WA mines.

She said Masters no longer associated with Johnston and was remorseful for her actions.

"She has clearly learnt a very hard lesson a very hard way," she said.

Magistrate Tim McDonald acknowledged Masters had never before faced criminal charges and he was satisfied she had been "infatuated with the male co-offender".

Masters was sentenced to two months' jail, suspended for 12 months. She was ordered to pay $750 in compensation.

Mr McDonald made it clear that Johnston, in his view the main offender, was likely to face harsher sentencing on his return to Bendigo.