Quebec's Court of Appeal has warned Guy Turcotte's lawyer for being tardy in filing documents.

Turcotte was convicted last year for the second-degree murder of his children, Anne-Sophie and Olivier. He was sentenced to life in prison without parole for 17 years.

The Canadian Press has obtained a copy of a notice sent by the Court of Appeal to Pierre Poupart, carbon-copied to the Crown, on Sept. 6.

That note said the defence lawyer is weeks late in producing his memoire to appeal the guilty verdict.

Turcotte was found guilty on Dec. 6, 2015, and Justice Vincent Andre sentenced Turcotte on Jan. 15, 2016.

Poupart filed the appeal within 30 days, as is required.

The brief and presentation to the Appeal Court should be made within 60 days, but this deadline is rarely respected, especially in complex cases.

However, the patience of the Court of Appeal has limits, as clearly indicated by the notice signed by the legal coordinator of the Court of Appeal, Stephanie Legros.

With files from The Canadian Press