> profiling people based on what they are. The London police do race quotas in stop and search. So for every X they stop they need to step some proportional k*

> profiling people based on what they are. The London police do race quotas in stop and search. So for every X they stop they need to step some proportional k*Y too. No matter how you do it you will end up stopping people in "bad" neighbourhoods more. So if that is considered a problem you need to give up patrolling or do unnessecary stopping in other places to weigh up due to racial composition in the worse of neighbourhoods.