Prosecutors for the State in the case of a Dublin teenager charged with the murder of 12-year-old school girl Michaela Davis have been given their last chance to complete their book of evidence.

Detective Sergeant Daniel Callaghan told Judge Bridget Reilly he needed a "fortnight or three weeks at the outside" for the book of evidence to be completed and served on the defendant.

Jonathan Byrne (19) of Lohunda Downs, Clonsilla in Dublin, is accused of murdering 12 year old Michaela Davis on the Porterstown Road, in west Dublin on August 28. Byrne was charged with Davis' murder on August 30 and was then remanded in custody.

Byrne was remanded for the fifth time at Cloverhill District Court on Monday pending the preparation of a book of evidence by the State. The defendant did not speak during his brief court appearance, where he was accompanied by members of his family.

Judge Reilly adjourned the case and remanded Byrne to appear before the same court again on December 7. The judge consented to the defense request to mark it 'peremptory against the State' which means the book of evidence must be ready to be served on the accused at his next court appearance otherwise the prosecution against him could be struck out.

Michaela Davis' partially clothed body was found in undergrowth on a bank of the Royal Canal on August 29.

Michaela Davis