Peetza, I'm not talking about correlational studies. And yes, the reduction is a multi-determined phenomenon. However, the use of sobriety check points is consistently a significant predictor of reductions in crash fatalities involving impaired drivers.
And they are not unconstitutional.
I do believe that it is incumbent on officers running them to be polite and respectful. I also think an acknowledgement of the inconvenience is in order
I did not see anything approaching procedural justice by the officer/deputy in the OP's YouTube post. These egregious errors were compounded by the K9 "search". I think I even heard the K9 officer say it wasn't a "good hit" before the search. In that case, that search was unconstitutional.
"I'm your huckleberry."