Segregating Prisons

It's a fact of life in many Western countries, that the rise in ethnic immigrants has given rise to a disproportionate (in relation to their proportion of the population) number of the immigrant males in prison for long sentences.

White v Black in US Prisons - Nothing New

Now I am not a proponent of the notion that this is inherent racism, I actually believe that in the main they get more latitude than they should before going to prison (but that's another argument).