Sometimes it's just obvious that an officer is wrong.
Other times the individual officers may not have been wrong but whoever authorized a raid on a bunch of kids, who may very well have been in compliance with law, in full combat gear, needs to answer some serious questions.
In the end the second is more dangerous than the first. There will always be officers having a bad day or making a stupid decision, but their effect will be limited. However, when those in control start authorizing combat raids against citizens dancing, even if they are violating a trespass statute or licensing ordinance, the potential effects are disturbing.
Originally found on PDD and WP.