It is absolutely critical that people be able to film a defendant in a field sobriety test.
These tests are very subjective but they allow the officer to make claims that a defendant was impaired at the time based on his “training and certification” to discern impairment.
A video record allows a jury to get a reality check on the officers in the field determination of impairment.
In a few states, the standard is not Driving While Intoxicated, it is Driving While Impaired and the standard for impairment is a subjective “impaired to the slightest degree”, not a quantitative BAL or Drug intoxication level.
Very simple why the cops don’t want to be video taped.
They can be held to the rule of law if they do not control the evidence.
Hard for the ‘fetid blue line’ to circle the wagons if they cannot control all the evidence.
Bullies & sadists the whole lot, IMHO.