A missing Reynella woman has contacted her family but police are still trying to track her down as they investigate a murder.

Rachael Moritz was last seen on December 23 but police believe she is safe and well after she contacted her family last night.

Ms Moritz will remain officially listed as missing until they speak to her directly.

Police believe her car was used in the shooting murder of Jason De Ieso at a Pooraka workshop in November.

The car was later found burnt-out at Kangarilla.

Police say while Ms Moritz was not at the murder scene, she could have information that will help their investigation.