http://www.ifsqn.com...dpost__p__48099
There was another (UK) query here similar to yours (pork meat I think) in last 6 months approx which contained links to numerous official refs but so far cannot find it (search engine here is limited to minimum 4 letters otherwise would search for "mig" [see below]
One primary general meat source is the FSA website and another primary official pork/beef processing ref is the MIG handbook which has been uploaded several times on this forum. The handbook contains detailed info. on creating a haccp plan as per official UK requirements.