not dry yet? haha... very creative way of looking at it.

anyway, if you see police personnel in blue with a reflective vest,
it could be either normal policemen [usually conducting roadblocks]
or people from traffic police. very hard to tell, but one way to
differentiate would be to look at their headgear [either peaked
caps or jockey caps].
but if you see police personnel in white uniform, then yes, they
are the one and only traffic police people.
