A Cardiff University study has established a link between pub violence and happy hour-style drinking promotions. The findings also show that pub staff themselves need to do more to stop heavily intoxicated customers from continuing to drink.
The greatest change in customers' intoxication levels between entry and exit.
Price promotions on drinks.
The team also found that simple observation of customers staggering or slurring their speech was a very accurate predicator of the levels of intoxication recorded by the breathalysers.