currently looking through the list -if any cop in Perth is on it - I'm complaining to the Chief Superintendent - may pop in and see him if I have the time 
Are you in the job - what do you do?
I remember when I joined up I had to declare on my papersift whether or not I was a member of BNP - the question was asked outright on the application form!
I must be honest, in as much as I don't know enough about the BNP and what it does to make an informed judgement on this thread - but I gather their views are prejudiced against certain sections of the community, so I doubt it would be appropriate for a Police Officer to be a member, given that he or she has sworn to treat everyone with fairness and impartiality :-?
I personally believe it's right that Police cannot be members of any party with an extreme view against certain people. For exactly the same reason that people cannot (usually) become Police officers if they've had certain past convictions, etc. It's just not appropriate -
It's not discrimination in my opinion - it would be in some occupations, but with the Police I think it's just a case of selecting people who can meet the necessary criteria to do the job and uphold the oath?
As an aside, did you hear about the cop who was hauled in front of Professional Standards recently because he was seen wearing a BNP badge off duty?