Warrant or Warrant Exception:
A: S&S must be authoirzed by (1) a valid warrant, or (2) a warrant exception.
R: (1) PC, (2) particularity, (3) oath/affirmation, (4) detached & neutral magistrate.
E: (1) plain view (2) consent (3) exigent circumstances (4) automobile (5) public arrests (6) incident to arrest (7) inventory (8) Terry stop (9) special needs
Stack: May stack exceptions on top of one another to expand authority, BUT...
Scope: ...may not exceed scope of authority.