The only flaw in the ruling is the meaning of ‘exigent circumstances’.
There is no violation of the fourth amendment here. The police had reasonable cause, that being the smell of marijuana coming from the apartment. When they start shuffling around inside the apartment they blew it right there. That’s where the exigent circumstances come into play.
What they should have done is open the door, step out and close the door behind them.
Probably cause is BS. Probable cause, according to the constitution, is to be used to get search warrants not to actually conduct searches and that is the way it used to be until some judge ruled that an officer could search you, your house, your car etc. solely on probable cause even though the constitution clearly states probable cause is to be used to get warrants. I don't care how much evidence is lost due to officers having to take the time to get warrants, I don't want the SOBs trying to break into my house without a warrant and without knocking.
Our Supremes made a big mistake on this one.