Explanation:
1. No they don't have to announce it if it's obvious to the people or no an officer don't need to announce it
And
2. The body-worn camera should be worn when there's an important issue going on to preserve an evidence and a clue of what really happened and for more reality and caution ⚠
Answer: To requirements are, Be a U.S citizens and applicants must be at least 21 years old.
Explanation:
12 years after the declaration of independence, the constitution written