Sophia Tilley to face Sydney court

The woman who was the focus of an ill-fated probe into NSW deputy crown prosecutor Margaret Cunneen is expected to face court on Wednesday.

Sophia Tilley, 26, was allegedly found with a small amount of cocaine last month.

She was at the centre of an ICAC investigation into Ms Cunneen after the state's corruption watchdog accused the top silk of advising Ms Tilley to fake chest pains in order to avoid a breath test after a car accident.

She was the girlfriend of Ms Cunneen's son at the time.