What does the police do when it garners evidence?
Garner: Gather or collect (something, especially information or approval).
When your knowledge about a subject is empirical:
Empirical: Based on, concerned with, or verifiable by observation or experience rather than theory or pure logic.
If you eschew violence, you:
Eschew: Deliberately avoid using; abstain from.
An impetuous decision is:
Impetuous: Acting or done quickly and without thought or care.
You should ameliorate your speech means to:
Ameliorate: Make (something bad or unsatisfactory) better.
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