Then look at it this way... how could she have gotten permission to do what she was doing? Could she have gone to a judge and said "I believe there is corruption or misconduct in this police force. I would like permission to follow them around and monitor them for any wrong doing."
This is basically what the police do when they want to stalk a private citizen. They get a warrant from a judge to stalk people.
Now, it appears she may have taken it a bit too far. But if there were a proper mechanism in place for the public to report on the actions of public officials (police, judges, senators, etc) it would make our government a lot more transparent, and possibly lower the instances of corruption and abuse of power.