"The family of the baby have been kept informed at regular intervals on the progress of the investigation and the outcome and recommendations for increased awareness for parents on the maternity ward," the spokeswoman said.
There had been no further incidents.
Police have previously said Narayan tried to take the newborn while her partner was waiting outside in a car.
She was stopped by the baby's parents and a nurse.
Narayan's former lawyer Heeni Phillips earlier said Narayan had been pregnant to her partner of six years but lost the baby last year and had been "suffering tragically and psychologically".
She was holding a baby that did not belong to her for reasons connected to "her previous predicament with her baby" but there had been a misunderstanding, Ms Phillips said.
"She didn't have any intention of running out with the child."
Justice Peter Woodhouse convicted Narayan and gave her a warning under the "three strikes" legislation.
He ordered a pre-sentence report, which was to include details of the treatment Narayan would require.
She was remanded on bail until her sentencing next month.
Narayan and her lawyer, Ron Mansfield, declined to comment outside court.