William Tyrrell's foster mother wants prosecutors to reveal any police evidence linking her to the three-year-old's disappearance and suspected death nearly nine years ago.
A painful lack of answers again surrounds the case of the missing three-year-old after police and prosecutors refused to comment on suggestions charges may be imminent.
The woman's lawyer, Sharon Ramsden, contacted detectives on Wednesday seeking confirmation that a brief of evidence had been sent to the NSW Director of Public Prosecutions for the consideration of criminal proceedings against her client.
Ms Ramsden was responding to reports that police had recommended William's foster mother be prosecuted over his 2014 disappearance.
"The foster mother and her legal representatives call for disclosure of the evidence which police suggest forms the basis of any criminal proceedings," the lawyer said.
"The foster mother has always, and (continues to) maintain, she has nothing to do with William's disappearance."
The police case alleges the woman, who cannot be named for legal reasons, might have disposed of William's body following his death at a Kendall property on the NSW mid-north coast.
Police have recommended she be charged with perverting the course of justice and interfering with a corpse, multiple media outlets reported.
A brief of evidence has reportedly been handed to prosecutors but no decision has been made on charges.
The woman's lawyer stressed the foster mother had previously been ruled out of any wrongdoing in relation to his disappearance.
"William's foster mother and her legal representatives urge the Director of Public Prosecutions to expeditiously determine whether charges are to be laid," the statement said.
The woman, aged in her late 50s, was acquitted in 2022 of lying to the NSW Crime Commission about hitting a different child with a wooden spoon.
The charge was unrelated to William's disappearance, which has been the subject of sustained efforts by police to find answers.
The case of the boy who went missing in a spiderman suit has intrigued the nation.
During a court hearing in November over the perversion charge, a senior NSW detective said he believed the woman had knowledge of William's whereabouts.
"I have formed the view (she) knows where William Tyrrell is," Detective Sergeant Andrew Lonergan told Downing Centre Local Court at the time.
The woman's barrister, John Stratton SC, suggested police had charged her for allegedly lying in an attempt to pressure her.
"You are hoping to break her spirit," Mr Stratton said.
"Our main objective is to find out where William Tyrrell is," Det Sgt Lonergan said.
In December 2020, a highly-publicised month-long search of the Kendall property and surrounding area failed to find any trace of the boy.
Police excavated a garden at the property, which belonged to William's foster grandmother, and examined a concrete slab laid after his disappearance.
They also drained a nearby creek and sifted soil in bushland and around the home.
A $1 million reward for information leading to the recovery of William and the circumstances surrounding his disappearance was announced in 2016.
The Office of the Director of Public Prosecutions declined to comment.
NSW Police said: "There are no updates in relation to this matter. The investigation is ongoing".
