The family of Amber Tuccaro, a woman originally from Fort Chipewyan found dead near Edmonton in 2012, has filed a complaint against the Leduc RCMP saying the investigation into the 20-year-old's disappearance was botched.

The official complaint says investigators downplayed Amber Tuccaro's disappearance in 2010 and took her off the missing persons list after one month, even though no one had seen her.

It says police also destroyed Amber's personal property that her family says could have been used as evidence.

Amber Tuccaro billboard

RCMP placed two billboards late last year near Leduc, Alta. in hopes of generating new tips in the death of Amber Tuccaro. (CBC News)

The complaint was filed with the Chair of the Commission for Public Complaints against the RCMP.

Amber Tuccaro was last seen in Nisku, outside of Edmonton, on Aug. 18, 2010. Tuccaro, who lived in Fort McMurray at the time, was visiting Edmonton with her 14-month-old son Jacob and a female friend. 

Her remains were found by a group of horseback riders on a rural property near Leduc, Alta. in September 2012. The RCMP's Project KARE, which investigates cases of murdered or missing people in Alberta, took over the investigation.

The Leduc RCMP says its policies and procedures have changed as a result of the Amber Tuccaro investigation.

In 2012, police released a cellphone conversation recorded between Tuccaro and a third party on Aug. 18, 2010, in an attempt to identify a man's voice heard in the background. He was trying to convince Tuccaro that he was driving east from Nisku to travel into Edmonton via 50th Street. Click here to listen to the man's voice.