George/Charles, thank you for your replies.
Charles, we haven't had any previous serious concerns with this CB, but they are clearly not quite as thorough as other CB's my friend and I have used in other roles. As this site is low risk there are no major "major" problems, just in the reliability of this particular audit.
I feel, personally, that the result of this audit has led us to believe we are considerably better than what we actually are and this in turn has led on to some complacency.
You are absolutely correct that upper management are happy to just carry on and also that QA have the more serious misgivings. The general feeling is that any concerns they have since raised are now met with "well, it passed BRC" and that is the end of the conversation.
George, i think the idea of changing CB's is a very good one, and one I have suggested to my friend, who is not that confident it will be taken up.
I'm thinking all that can be done now is to just let this one ride and hope for a better quality audit next time round, I'm told another audit is due before Christmas for some reason, with a new senior manager on site now this could be a very good time to guage reaction and see if proceeding with a new BC is a possibility.
Many thanks for your replies, as ever, they have given a bit more perspective to a situation.