Police said yesterday the training exercise, which involved up to 100 participants from Canterbury Land search and rescue, police search and rescue and the Amateur Radio Emergency Communications' Group, would focus on the area where Beattie went missing.
Search and Rescue coordinator Sergeant Phil Simmonds said yesterday it was the major training event for the year.
"The exercise will be used as an opportunity to continue the search for 20-year-old Emma Beattie, who went missing from her Fernside home in December."
The officer in charge of the search for Beattie, Senior Sergeant Paul Reeves, said yesterday the Beattie family had asked for privacy.
"Our sympathies are with the Beattie family – they want more than anything to bring Emma home."