A lawyer will fight accusations she smuggled meth and cocaine into a prison, admitting she did smuggle in tobacco and opioid medication.
Kristy Lee Howell was arrested at Parklea Correctional Centre in Sydney's western suburbs in July.
The 43-year-old formally pleaded guilty on Friday to unlawfully bringing anything into a place of detention and supplying a prohibited drug.
Those charges relate to two grey balloons packing 106 grams of tobacco, and 32 strips of painkiller and opioid-addiction medication buprenorphine.
But Howell pleaded not guilty to two further drug supply charges, alleging she took part in supplying about 18g of methamphetamine and 3g of cocaine.
She is yet to enter a plea to a charge of unlawfully bringing anything into a place of detention that was added in Blacktown Local Court on Friday.
Howell remains on bail, with conditions barring her from attending any prison or contacting the inmate she was visiting on the day of her arrest, and is due to return to court at the end of September.
