Richard Bilton takes a look at how bars in Oldham could be forced to change the way they serve drinks.
Oldham Council says bars must adopt the new model if they want to sell cut-price alcohol below 75p a unit.
The Lancashire town is trying to fight back the recent spike in alcohol-related violence.
Panorama: The Truth About Happy Hour is on BBC One, Monday 10 August at 8.30pm
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