Police located some drug paraphernalia and a mobile phone that was forensically examined.
Messages taken from the phone revealed Walker had supplied or offered to supply cannabis and methamphetamine 11 times to seven different people in the two weeks leading up to her run-in with the law.
"Of the 11 supplies, seven of those were methamphetamine," Ms Sheppard said.
"The supplies were street level and in regards to the methamphetamine they were commercial in that on each occasion there was a discussion about exchanging money." The court heard Walker supplied the drugs to friends and had a previous supply charge on her record but it was 18 years old.
Defence barrister Kelly Stone said at the moment Walker could still return to her work when her medical condition allowed but the recording of convictions would impact that possibility.
Judge Michael Shanahan acknowledged that but said the recording of convictions was appropriate.
Walker was sentenced to 18 months' imprisonment but was released on immediate parole.
