Do you have any specific examples?Redwood does make a good point, where is the bonfire of the crap EU rules and regulations?
When I left the UK at the end of Major's government, I had no job security and had to accept temporary renewable contracts for a job in local government that by its nature was permanent. This was before the UK signed up to the social chapter. That was definitely a benefit to the workforce in things like holiday entitlement.
Now the UK is free of any obligation to follow the requirements of this legislation, do you think the government is intending to implement even better working conditions, or little by little whittle them away back to the situation I experienced in the late 90's?