GMP’s professional standards directorate is reviewing a missing report made before her body was discovered.
Detective Inspector Louise Edwards said: “For the last 12 months, the investigation team have worked meticulously on this case, demonstrating commitment and dedication to giving Laura her identity back and reuniting her with her family and loved ones.
“I would like to pass my condolences on to all of those who knew Laura, especially her family, who we are continuing to support at this awfully difficult time.
“We will now continue to investigate Laura’s last movements and how she ultimately came to be discovered in the River Mersey just over a year ago.
“These are answers her family deserve and we will be keeping them updated as we carry out this work.”