Detectives are issuing new CCTV images and renewed appeal to trace missing man Craig Alderson who has been missing for several weeks.
The 44-year-old who is originally from the Queensbury area, was last seen on Friday 20 January and has not been in touch with any friends or family.
The CCTV images are from Chapel Street, in Queensbury on 20 January around 10:45pm, which shows Craig holding a laser measuring device in his hand.
Officers in Calderdale have been conducting extensive enquiries to locate Craig, both in residential areas and open ground, working alongside local Search and Rescue teams and partners across both Bradford and Calderdale districts.
They have also been continually in touch with Craig's family, friends and acquaintances.