Almost nobody fights/struggles
One of the few things that bugs me about Adam 12, and I'm 2 episodes away from completing the series - is that virtually NO suspects ever seem to struggle once they are tackled after a chase. Today - suspects regularly have to be tazed. In Adam-12, once they are told to put their hands behind their backs, they stop, comply, and go peacefully.
Now, I don't need to have them struggle in each episode, but every once in a while, it might be interesting to see a few criminals resist just a little.