An investigation by ITV has revealed many people are still taking risks on nights out by getting into unlicensed cabs to get home.
This footage shows people getting into an ordinary car in Birmingham City Centre which ITV placed hidden cameras inside.
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She was last seen in Warwick earlier today.
A man, reportedly armed with a knife and a baseball bat, was detained close to the event and police cleared the area as a precaution.
Tens of thousands of people are expected to line the streets this weekend.