What to do if you suspect a player is cheating?

[GinaSD]

Common.
Lucky.

The type of player I'd look for, and try to have at my table- time and again.

[JereLock]

I'm fairly sure his showdown win% would be quite a bit higher than that too, given he could see hole cards or something

[Xanthro]

Pretty standard. I even seen player who aren't horrible post flop with 75%+ VPIP.

Bad players and bad play can still get lucky and be up a significant amount over a short period of time.

[BalancePoint]

Follow this player around