I wonder what it would take to get the name of the van driver. I think that if they are over 18 the Freedom of Information Act would cover it but in a lot of these things you would need to go directly to that city's police department in question, in person, during "viewing hours" and ask for it. But since even most police departments are highly politicized to the left these days, you'd likely get quite a bit of attitude. Or, it's possible that an activist judge has even sealed the records as a preemptive measure to protect the "immigrant's" "civil rights". The latter outcome wouldn't really surprise me much at all.