The government are trying to stop the publication of crime stats broken down by nationality and immigration status. We can only conclude that the stats are so terrible that they fear civil unrest, vigilantes and a massive hole kicked in to the idea of 'diversity is our strength'.
Trouble is countries similar to ours like Germany and Sweden have published their data, so we can make an assumption that our stats would be similar. And it's not good. Those countries have seen support for anti-immigation 'far right' parties surge, so I get why our government wants to hide this from us. But it won't wash. People are fed up of all the gaslighting.