NO. The Illinois State Police carried the S&W M-39 for years as did a few departments. But not until the advent of the "Wonder Nine" did the revolver lose ground as the primary LE habdgun. The Wonder Nines were the S&W 659, the Glock 17, Beretta 92 and the SIG P226. PD jumped on the 9mm "lotsa bullets" bandwagon and everyone was screaming "we're outgunned". Single stacks didn't carry enough extra ammo to make conversion worthwhile.
I know because they had to drag be kicking and screaming into the Auto world. In fact I became a Detective just because of the wonder nine. (In my department detectives were allowed to keep their revolvers)

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