5 people injured in the back of a police van in 18 years ? Not a bad record considering how many rides. But yes they should seat belt them as they should seat belt children in school buses and people riding metro buses.
Those are the ones that came forward.
Are you confusing the bus rides that all of us here did daily for years and years, with being handcuffed with our hands behind us, inside one of those slick metal boxes?
Can you seriously imagine any city transporting children under the conditions that they were transporting people that they picked up on the streets?