There is a No turn on red sign, or there are too many vehicles passing in the lane you are trying to pull into
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 ⚠
Ya so he can’t see you coming when you run in to the back of him
