[Oberon]

This whole issue could've been cleared up by one person on scene with enough experience to tell coke from flour on sight/smell/taste alone.

If you're a cop, you don't taste stuff you suspect could be drugs, and probably don't smell it either, no matter what they show on TV.

You just don't.

[Hemingway's Ghost]

Is it possible for an experienced narcotics officer to tell coke from flour by sight?