A woman, who was driving with her young son as a passenger while her licence was suspended, has been charged with high-range drink driving.
Police said the woman, 44, from Thirroul, allegedly returned a breath analysis reading of 0.182.
This is nine times over the 0.02 limit that applies to drivers with a suspended licence.
Police have completed a child at risk notification to Family and Community Services.
Officers from Sutherland Shire Traffic and Highway Patrol Command detected the woman driving a Toyota Hilux on the Princes Highway at Waterfall at 4.35pm on Friday.
The womans' vehicle was stopped and she was subjected to a roadside breath test, which returned a positive result.
She was arrested and taken to Sutherland Police Station, where a breath analysis allegedly returned a reading of 0.182.
The woman was charged with high-range driving and driving a motor vehicle while her licence was suspended.
She was granted conditional bail to appear at Sutherland Local Court on Thursday, April 30.
Police have completed a child at risk notification to Family and Community Services.