.380 is down in power from a 9MM luger. Many LE agencies went away from the 9MM Luger because it lacked power. There is new .22Mag ammo that claims power near the .380. I own a .380 (not a smith), and would not want it for PD. With the right ammo I would carry my Glock 19 9MM.
That said, my pistol coach recommends the most powerful gun the shooter can reliably handle. And .380s are quite concealable as a rule. If it were all I had I would use it.
Pretty crummy response. Sorry about that.