Police are asking the public for information on the whereabouts of Renee Duckmanton on Saturday night, after her body was found on Sunday.
Ms Duckmanton's body was found on Main Rakaia Rd in Canterbury, 500 metres from State Highway 1.
Detective Inspector Daryl Sweeney says a large team is dedicated to the investigation and he can't rule out the sex industry as being related to her death.
He says she was last seen around the Peterborough St and Manchester St area, a common place for those in the industry to work.
Police would like to hear from anyone who may have seen her in this area on Saturday night, between 8pm and 10pm. They would also like to hear from any of her clients or clients of any other woman in the area.
A property was cordoned off yesterday on Kowhai Terrace in the Christchurch suburb of St Martins, where Ms Duckmanton's mother lives. Another scene examination was underway today in Bowenvale Ave, where she lived with her boyfriend.
Forensic teams examined the scene on Main Rakaia Rd, near State Highway 1 and are also combing through CCTV footage.
Her family released a statement earlier today saying they will always remember the 22-year-old's "bright spirit" and "beautiful smile".
Anna Reed from the Prostitutes Collective says she is "devastated" by the death. She is working with police to help establish Ms Duckmanton's last movements.
She urges others in the industry to be extra vigilant.
Det Insp Sweeney says post-mortem results won't be released to the public.
The Christchurch Central Police Station can be contacted on 03 363 7400 or information can be provided anonymously through Crimestoppers on 0800 555 111.