A former Border Force official has been sentenced to jail after forging documents to make unauthorised payments with a government credit card.

Pablo Olivares pleaded guilty to two counts of forgery and three counts of theft and was sentenced in a Brisbane court this week.

Mr Olivares was accused of having made 134 cash withdrawals, several hotel bookings and rented a car, without authorisation, on his corporate credit card between mid-2016 and mid-2017.

“The former ABF officer used his position to obtain a financial benefit and cause a detriment by defrauding the Commonwealth,” Integrity commissioner Jaala Hinchliffe said.

He faces two-and-a-half years in jail and is expected to pay back $93,898.75.

The federal law enforcement watchdog says there has been a substantial increase in corruption notifications related to the Department of Home Affairs in the last year.

Of 167 corruption notices, 100 fell under ‘Home Affairs’, which includes the Australian Border Force (ABF). A further 63 of the notices were related to the Australian Federal Police (AFP), and the remaining four were to do with the Australian Criminal Intelligence Commission (ACIC).