Equality Bill

I am having slight difficulty in understanding Clause 77, because the word "colleague", to me, would assume somebody working alongside, or at least in the same employment. I do not understand how that could include a trade union official who is not, or has not been, a colleague. Can the Minister explain that? She said a while ago that this would perhaps include somebody who was a trade union official working in an allied industry, but not necessarily as a colleague working in the same industry. I am not sure that "colleague" would take you as far as the Minister seemed to say the Government were expecting to go.