TV Guide for Yesterday Thursday 8 in Sky Witness

The team faces their toughest roadblock yet when a string of crimes leads them to discover an online conspiracy theory community.

Colin and Bill race to stop a company from covering up their intelligence theft while taking down a dangerous person from Colin's past.

Revealing the grit that goes into policing Britain's streets, tonight's instalment features a drugs raid, a confrontation with a drink driver and a firestarter. Strong language.

Documentary series from New Zealand following the madness and mayhem faced by intrepid officers as they keep the roads safe.

Documentary series from New Zealand following the madness and mayhem faced by intrepid officers as they keep the roads safe.

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.

On the hottest day of the year, the team come to the aid of a motorcyclist who has crashed into a minibus, and a 16-year-old boy with a major head injury.

New Zealand reality series following the work of customs officers as they prevent drug smuggling, illegal immigrants and more.

New Zealand reality series following the work of customs officers as they prevent drug smuggling, illegal immigrants and more.

A tattoo artist attempts to bring his machines on vacation, while homemade treats contain a deadly surprise and a suspicious parcel packs a punch.

A Thai vacation guide offers more than holiday advice, while photo gear might spoil a snowboarder's birthday. Plus, the past catches up with a Jersey boy.

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.

From epic road rage to instant karma, the consequences of a mid-life crisis, treacherous weather and construction chaos - we've got it all Caught on Dashcam.

Police investigate a drive-by shooting at an apartment building and a homeless man is stopped for smoking fentanyl. Flashing images.

The team races to recover a human sex trafficking victim after their sting operation goes sideways.

The team races against the clock to take back control of a hijacked train that an unarmed OA and Gemma are riding.

Harper and Lucy work undercover in Baja investigating two women's murders. Nolan and Bailey deal with their long-distance relationship.

Jamie works to bust scammers defrauding the elderly. Danny and Baez investigate a series of deaths at a hospital.

Fly-on-the-wall documentary following the men and women who defend Australia from drug runners, smugglers and terrorists.

Fly-on-the-wall documentary following the men and women who defend Australia from drug runners, smugglers and terrorists.

Fly-on-the-wall documentary following the men and women who defend Australia from drug runners, smugglers and terrorists.

Fly-on-the-wall documentary series following the men and women who defend Australia from drug runners, illegal immigrants and terrorists.

Fly-on-the-wall documentary series following the men and women who defend Australia from drug runners, illegal immigrants and terrorists.

Fly-on-the-wall documentary series following the men and women who defend Australia from drug runners, illegal immigrants and terrorists.

Fly-on-the-wall documentary series following the men and women who defend Australia from drug runners, illegal immigrants and terrorists.

Fly-on-the-wall documentary series following the men and women who defend Australia from drug runners, illegal immigrants and terrorists.

Get ready for crazy police chases, hilarious stunts that go wrong, snow and ice causing mayhem, and heroic acts of rescue, all caught on camera.

Colin and Bill race to stop a company from covering up their intelligence theft while taking down a dangerous person from Colin's past.

When a well-known singer decides to retire, she receives a terrifying fan letter. Her head of security hires McCall to track down the culprit.

Nolan makes a quiet arrest. Lucy and Celina race to rescue a kidnapping victim and Harper and Lopez help outsmart a killer.

Dr Charles grapples with his own mental health after working the suicide prevention line.

Severide overcomes new obstacles at the firehouse. Cruz finds himself at a loss amid family changes.

Torres works to end a revenge killing cycle after a teen's death.