home searches are incredibly complicated. You essentially need a warrant for any home search when you do not have consent.
The fleeing felon thing is sort of like an emergency situation. If you have to sit there and be like, "Hi, oh yeah, we are like just looking for this felon. Yeah, I can show you a picture" You are sort of running out of the emergency. Those are for situations where you KNOW the guy went in there and he's violent, like he just killed someone, and you are going to bust that door in no questions asked.
" is important to note that the second and third rule above are intended to protect the safety of the officer; therefore, any searches based on these rules should be limited to areas where a person could hide.
Lastly, we will review warrantless home entry based upon exigent circumstances. In Minnesota v. Olson, the United States Supreme Court held that warrantless entry into private premises may be allowed when officers have probable cause to believe one or more of the following circumstances are present:
In hot pursuit of a fleeing felon;
To prevent the imminent destruction of evidence;
To prevent a suspect's escape; or
"