My friend and co-researcher Alan Wright, who has died aged 81, enjoyed more than 50 years as a criminal justice practitioner and philosopher. He served for a quarter of a century in the Metropolitan police in London, then completed more than 25 years as an academic and independent scholar.
As a detective sergeant at New Scotland Yard in 1967, he was posted to a new inquiry into the activities of the Kray gang; he was to become the longest serving detective on the case through to their conviction in 1969. When asked what he said to them at their arrest, Alan replied: “Ronnie and Reggie, get in the van.” Their response went unrecorded.