Thank you for your suggestions, however please only post one suggestion per topic as it makes it difficult to categorise the topics.
1. Already suggested.
2. No. It's a crime to attack a cop. It doesn't need disabling.
3. You can use spike strips. You shouldn't use lethal weapons against someone who only has a ticket..
4. Cops are already informed when a suspect is unarmed.
And it's robbers, by the way.