I don't know if this has been mentioned in any of the previous 99 posts, however...
A total of 13% of the UK population is made up of ethnic minorities. The RAF, under Wigston, has a recruitment target of 20% ethnic minorities. First of all this is apparently a more ambitious target than that of either the Army or RN. So presumably this isn't a tri-service policy, having come down from CDS or the politicians, but an RAF (under Wigston) self generated figure. Secondly, a target of 20% vs 13% of the population indicates a policy of deliberate over representation, by around 50%, dare one say a policy of "positive discrimination"?