Former Australian Border Force commissioner Roman Quaedvlieg gave his girlfriend, Sarah Rogers, advice on getting a job at the government agency because "I think you have great talents ... and equally [because] I love you", court documents say.

During a later corruption probe investigating the circumstances of her controversial employment, Mr Quaedvlieg told her not to "stress about the consequences - there won't be any if you tell the truth".

Roman Quaedvlieg and his girlfriend, Sarah Rogers, who has pleaded guilty to misleading a corruption probe against the pair, arrive at the Downing Centre Local Court in Sydney on Wednesday. Credit:AAP

"There's nothing to hide or lie about. Just tell it as it is," he said.

Text messages between Mr Quaedvlieg, 54, and Ms Rogers, 24, were tendered in the Downing Centre Local Court on Wednesday after Ms Rogers pleaded guilty to misleading investigators and disclosing the existence of, or information about, her summons before the Australian Commission for Law Enforcement Integrity in 2017.