A motorcyclist who died in a crash in Bradford was a serving traffic police officer.
Pc Ian Walker had served with West Yorkshire Police for 27 years
Pc Ian David Walker, 50, was on his way to work when he collided with a Nissan Almera car on Bolton Road on Wednesday.
Ch Supt Allan Doherty, divisional commander of Bradford North Police, said Mr Walker would be sadly missed.
He leaves a fiancee, his parents, brother and two children. Three men have been arrested over the incident and are being questioned.
Mr Doherty said: "Ian will be sadly missed by all those who were fortunate to know and work with him.
"His family are naturally devastated, but are enormously grateful that he was happy at work and at home and that he was surrounded by a close circle of friends and colleagues, who he respected and in turn respected his professionalism, commitment and dedication to duty."
Mr Walker joined West Yorkshire Police in 1980, serving in the Chapeltown, Killingbeck and Weetwood divisions.
He transferred to Bradford in November last year as a roads policing officer.
Mr Doherty said: "Although he had been at Bradford North for less than a year, Ian had established himself as a dedicated, enthusiastic and competent police officer.
"In this short time Ian had become a popular and admired colleague whose quiet demeanour, willingness to help others and desire to fulfil his ambition of once again becoming a roads policing officer were highly respected."
Police have appealed for witnesses to the crash to come forward.