Meh, there isn’t a large enough data set to draw conclusions. Neither DHS nor the states maintain such data in that format. The only state that does is Texas and due to litigation its disorganized so the figures can’t be used to draw useful conclusions. However, those numbers, in one context, suggest a homicide rate lower than the general population. But not by much. Which makes sense. People are people regardless if they can register to vote. And people who don’t want to get deported are often more careful about getting caught than those who travel freely.
But it’s a mistake to say that their crime rate is lower. We simply don’t know. This is a common theme when common sense starts to drift into public policy debate. The first theme they roll out for the casual observer is that if there isn’t statistical evidence gathered by government workers, then the problem doesn’t exist. The bureaucracy counts everything that perpetuates their continued expansion. They can tell you how many TVs and Pampers they bought for asylum seekers, literally in granular detail. Not just the exact number but where. But they have no idea how many have been convicted of murder and will be turned loose next week. They don’t even know definitively that the person who checked in on their phone before coming is the person sitting in front of them. But they know they spent $931.35 per day on this person for the last 39 days, so off he goes.
So raise your antenna when pressure groups go to court to stop states from gathering evidence like this. Why is it worth millions in legal fees to them to stop a court from checking a box that the murderer is not lawfully present? Why do they sue to prevent prisons from deporting murderers when their sentence is done and they have a lawful order of removal? Why does ICE have to stake out police stations, for hours and days on end with multiple officers waiting for a convicted criminal to walk out because the cops can’t hold them pending ICE pick up? Because you could count that is one reason why, among many.
But back to the debate, the same studies that document that the murder rate amongst illegal aliens is lower than the population at large, didn’t exactly highlight the fact that it is twice the rate of legal immigrants. If you vet folks, if they have means to support themselves, if you verify they have a place to live and are authorized to work, BEFORE they enter, and you don’t have to scramble to try and give these things to them, then they are a lot less murdery.
Last point, CBP tracks the monthly rates of people they arrest at the border with deportable convictions and breaks that out by crime. Murder manslaughter etc was about 3 per year for decades. Until 2021. It’s been about 60 per year continuously since then. Thats just the ones they caught or turned themselves in trying to use asylum to con their way in and get better treatment. It doesn’t count the thousands that evade capture between ports of entry or don’t murder until they get to the interior.
The Biden immigration policy is a failure by any calculation.