I have no idea what kind of police officer you are, but you're a very good teacher.
11 seconds sound clip from the Kindergarten Cop (1990) movie soundboard.
You can hear this line at 01:14:35 in the Blu-ray version of the movie.
Quote context
[...]
- I thought the use of your police whistle was outrageous...
- That's all I could think of.
- Sorry.
- I have no idea what kind of police officer you are, but you're a very good teacher.
- Now, will you tell me something? Don't lie.
- What did it feel like to hit that son of a bitch?
[...]