The Maryland State Police can find the 200 million dollars to buy AW-139's but will still fly them Single Pilot I bet.
As Sebastian correctly states (maybe new....but absolutely on the mark) the second Pilot would be a Godsend when it all goes egg shaped.
In reality, as Crab and others have already said....Prevention is the Cure!
Why is it pilots who cannot say "NO" to a flight...at some point wind up saying "OH! NO....NO....NO!" just before they smack Mother Earth at near warp speed!