If your not breaking the law and your an honest law abiding citizen this will never effect you.
Here is another example: An officer goes to a house and can smell the overwhelming odor of chemicals that are associated with the manufacturing of Meth. The law says that because these chemicals pose such a dangerous situation to the people in the house and their neighbors for explosion, fire, chemical exposure and death that Officers should make immediate entry to contain and get the area cleaned up and make any arrests that need made....So you would rather have officers go to situations like that and just leave it...what if that house was next to yours....if it blows up and burns down...so does yours and perhaps someone you care about gets hurt or worse...
Shesh....Im done and I'm getting off my soap box now.
That first part is the worst, lamest excuse ever. I mean EVER. You cannot reasonably state that for a fact and you know it. Mistakes are made and people can get killed as a result. The 4th Amendment rights of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, should trump any concerns over whether someone is smoking a doobie in the privacy of their own home. Take the case in point. They're chasing a drug dealer. He disappears. They smell pot. Is it reasonable to assume that said dealer, who disappeared moments earlier, closed the door, lit up an Up In Smoke sized joint and exhaled enough that they could smell it on the other side of the door? Sell me that "reasonable supposition".
Your meth lab exigent circumstance doesn't apply in this case, so it's a red herring. OSHA now mandates PPE for meth labs, so you wouldn't normally enter a suspected meth lab dwelling immediately upon detecting chemical odors. You might just get yourself killed in the process. You also haven't necessarily established that the dwelling is occupied, or that neighbors (who may live some distance away) are in danger. These are all simply excuses to "get the bad guys off the streets", without exercising risk management and due diligence. I blame the courts in falling for these sorry excuses as justification. The system no longer protects the innocent, nor does it respect the BoR.