Each month, Crimewatch reconstructs the country's most high-profile cases and tackles some of the toughest cases that have remained unsolved for years. Kirsty is joined in the studio by senior detectives and crime experts ready to act on audience calls. You'll be able to watch reconstructions again online after the show and witness how police have cracked some of the nation's most intriguing cases in our new strand, How They Caught... Rav Wilding will also be on hand with a monthly line-up of Britain's most wanted.
Crimewatch has featured nearly 4,000 cases, including most of the major crimes of the past two decades, from the bombing of the Grand Hotel in Brighton in 1984 to the shooting of 11-year-old Rhys Jones in 2007.
The cases that appear on the programme always come from the police, with the production team working closely with officers on each appeal. Reconstructions are at the heart of the programme. They've proved an effective investigative tool and often lead to vital calls from the public.
The success of the programme is down to the response of viewers. Anyone can pick up the phone and speak to officers live in the studio, giving potentially crucial information and helping to solve a case.
If you miss the main show or update, or simply want to watch them again, you can stream or download both programmes from BBC iPlayer. The shows are usually available approximately two hours after they air on BBC One.
Due to legal restrictions, Crimewatch is only available for 24 hours after broadcast for both click to play (streaming) and download on BBC iPlayer rather than the usual seven days. Find out more about BBC iPlayer.
However, all our reconstructions and CCTV footage remain on the website until someone is arrested or charged in connection with that particular case.
Kirsty joins Crimewatch in its 24th year. Since October 2006 she has also been presenter of BBC Radio 4's Desert Island Discs, only the fourth presenter of a show that spans more than 60 years. Guests she has interviewed include Yoko Ono, Ricky Gervais and George Michael. She has also hosted several editions of Have I Got News For You.
Previously, Kirsty was the main news anchor on Five and has presented ITV's major news bulletins and News at Ten. She has also presented several news specials, documentaries and other prime-time programmes for Five and ITV.
Rav joined Crimewatch in 2004 and worked for the Metropolitan Police force for eight years before leaving in February 2008. He joined the Met in 2000 after four years in the army. His last police position was Detective Constable for the CID in south London, having previously spent time in the Met's Project Sapphire, dealing with serious sexual assaults, and the burglary squad in Peckham.
Outside work, Rav loves the gym and rugby. Although, much to the relief of Crimewatch's make-up team, he doesn't play rugby too often these days.
Matthew has been one of the main presenters on BBC News24 for the last 10 years and also presents weekend bulletins on BBC1. He has covered major stories such as the London bombing on July 7, when he presented rolling news for six hours.
Matthew has also worked as a political and a foreign correspondent, reporting from Northern Ireland, Bosnia, Westminster, Washington and New York. He has also made several documentaries for BBC2 and the Discovery Channel.
Matthew joins Crimewatch to present the show's new strand "How they Caught...", going behind the scenes to find out how police solved some of the nation's most fascinating cases.