Unfortunately, I think is was an attempt to stem where to become a Police Commissioner under the last Government you had to ideally be from an ethnic or gender minority or at the very minimum be happy to promote their PC liberal agenda.
Sadly, the police were always interdependent like the civil service until the damage done by the last government where they didn't just blur the lines, but drove an army of PC liberal appointees through it.
This is one of the disadvantages of have an unwritten UK constitution, but it will not matter soon as from 2014 onwards when the Lisbon treaty and Constitution comes into full effect we will be ruled by this with a massive increase in the areas that the EU have total control of, so Parliament will be little more a rubber stamping shop, until it is abolished as part of the Federated States of Europe treaty of 2014-15, when it will be Brussels and regional councils based upon the EU NUTS 1 regions.
Labour tried to set up these regional councils, but were mainly defeated in local referendums for them. So next time don't expect to get a vote as it will be imposed as part of the FSE treaty. Then it is job done, the UK will cease to exist as a country.
Vote UKIP.