Anyone with any information on the whereabouts of Scanlon is asked to contact the toll-free number which has been established for the investigation, which is 0800 800 493.
Police continue to build a picture of Heke's associates and are approaching people known to him across the country.
Police said they will continue to pay close attention to these individuals until he is located.
Police are also continuing to investigate the events of Sunday morning and are speaking to a number of people in relation the incident.
Heke's father has today spoken in the media, urging his son to peacefully hand himself in.
This follows similar comments in the media from his mother.
This is a message which police strongly endorses, Page said.