TV Guide Sky Witness Wednesday

Billy the new sniffer spaniel finds live ammunition during a search for drugs, and a stabbing on the streets of London brings together two of the city's leading Alsatian dog teams. PC Mandy Chapman and her canine companion Karly are sent in to enforce a court warrant against a dangerous dog, while Sergeant Peter Madden and Brodie are on the trail of burglars using stolen cars as getaway vehicles. Narrated by Ken Stott

Documentary following the work of Ireland's border force officers as they fight to stop gangs of organised smugglers from bringing drugs, money, guns, cars and even exotic animals into the country

Fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports as customs and immigration officers tackle drug runners, illegal immigrants and terrorists

Fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports as customs and immigration officers tackle drug runners, illegal immigrants and terrorists

Documentary series charting the exploits of the City of London police, charged with safeguarding the Square Mile at the heart of the crime-ridden capital, focusing on steps to tackle credit card fraud

The work of British Transport Police's canine units, which help monitor the safety of commuters on thousands of miles of railway and underground track. The programme follows a spaniel trained to search for drugs, as well as police dogs that help their human handlers control the crowds at football matches. Ken Stott narrates

Fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports as customs and immigration officers tackle drug runners, illegal immigrants and terrorists

Fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports as customs and immigration officers tackle drug runners, illegal immigrants and terrorists

Fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports as customs and immigration officers tackle drug runners, illegal immigrants and terrorists

Fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports as customs and immigration officers tackle drug runners, illegal immigrants and terrorists

An actress is gunned down, leading Goren and Eames to focus their attention on a woman known to have shown an unusual interest in the victim's boyfriend, who was also wounded in the shooting. However, it soon becomes clear that the activities of the man's associates deserve further investigation. Crime drama, starring Vincent D'Onofrio, Kathryn Erbe and Jamey Sheridan

Jason is hired to help a woman determined to go against legal advice when she insists on pleading guilty to the murder of a wealthy philanthropist who preyed on her as a teenager. One hundredth episode of the legal drama, starring Michael Weatherly

When a psychologist with national security information goes missing on a hike in the Swiss Alps, the Fly Team works alongside Agent Tyler Booth to find him. Meanwhile, Mitchell receives unnerving news regarding his biological father