I am being made redundant at the end of the year and therefore I have started looking for a new position. I have worked for the same company, which is the largest mineral extraction and processing company in the country for 11 years. I have held numerous supervisory positions and I am currently delivering health and safety training across the business. I have the NEBOSH general and construction cert and I am a member of IOSH. I have never worked as a dedicated safety advisor but would very much like to. I have been offered two such roles with my current employer but they required relocation so I was unable to take them.
My question is what is the best way to break into this seemingly impenetrable job market. I have a lot of practical h&s experience and have recently been involved with some audits.
I would appreciate any thoughts or advice on this matter.

Dave, good luck in your quest. Playing devils advocate.
Why not take one of the roles that you have been offered as a means to an end? Take the role get some experience etc etc take the money and while you are doing so search like mad for a role closer to home. You will be with an organisation that obviously wants to retain you, you know them,and how they work - yes it may mean being from home during the week but this would hopefully only be short term.
I am obviously not aware nor need to know your personal circumstances but sometimes it is better the devil you know than the one you dont - been there done that got the T shirt. As you are acutely aware it is difficult to get into the H&S field with lots of experienced and highly qualified people looking for work - who may well take the roles you have been offered; so my advice would be to look at what you have been offered and see if there is any possible way you could make it work in the short term so that you gain valuable experience.
Good luck in whatever you decide to do.
Stuart

Another agreeing with Stuart
You might be surprised at how many of the UK workforce work away from home

You don't say where home is but despite what the chancellor might say the jobs market in most of the country is blighted and will remain so for a long while (IMHO).

Thanks for the feed back guys. I agonised over the relocation, but despite the many benefits and valuable experience it didn't fit with my personal circumstances. I am in Wigan, so ideally I am after a north west based role. My current role requires national travel which I don't mind but it is fully expensed and I am not away from home more than 1-2 nights at a time, so I would be willing to take a role that involves travel.
I have been doing some voluntary work which I have found very interesting and I am more than willing to do more but eventually it needs to be paid work.