if you're talking employment tribunals, that got stopped a few years back. more
here.
i'm not convinced there will be an immediate 'bonfire of red tape' but can see a lot being ditched or cut back over time - health and safety standards, right to paid holiday, parental leave and so on - will all be dressed up with a lot of union jack waving and bollocks about being 'competitive' and how those poor hard done by bosses "can't afford" to offer "generous" terms and conditions (and they and their friends in the millionaire owned media will still probably blame foreigners / immigrants / trade unions for it)
ultimately, while i've no particular enthusiasm for the EU, i can't see the current shower of twunts doing anything that will benefit working people, and can see them doing a lot in the interests of their hedge fund chums...