Among pro-Brexit voters there seems to be a belief that many of the EU laws are silly or otherwise bad for the UK. There is a partial list of myths surrounding bad EU legislation which covers some of the purported silly laws.
Which EU laws do politicians commonly claim are detrimental to the UK?
Please include who makes the claims and their reasons, if given. Most reasons I have seen are economical.
(As an example I have heard the Working Time Directive mentioned as being bad for the UK economy, but I do not know who makes this claim. There are also many sources which claim this law is good for the economy, or for society in general. The truth of any claims is outside the current question.)
Edited-addendum: To further clarify, I am not interested in verifying which, if any, EU laws are actually bad for Britain. I am only interested in finding out and recording: 1) which politicians or political parties are making claims, 2) which laws, or groups of laws, they are most commonly citing, 3) what reasons are they giving.