Scene of the crime

THE DETECTIVES: MURDER ON THE STREETS | BBC2 9PM

The acclaimed documentary series returns, this time to spend one year (and four episodes) following Manchester detectives through the painstaking process of unravelling various complicated cases. We begin tonight with the discovery of a burnt body in a homeless camp under railway arches, and Greater Manchester Police’s Major Incident Team begins a murder investigation – but a lack of CCTV or witnesses leaves them depending on forensics for a lead in the case.