Wow. You have egg on your face for posting this. Do a little research, and delete this video.......If you have any integrity at all.
Yes, generally, it is illegal and unconstitutional for U.S. law enforcement to enter a home without a judge-signed search warrant, as the Fourth Amendment protects against unreasonable searches, but there are key exceptions like consent, exigent circumstances (emergencies, hot pursuit, imminent destruction of evidence), and plain view, which allow for warrantless entry, so it's not absolute.
Core Constitutional Principle:
Fourth Amendment: This amendment protects people from unreasonable searches and seizures, requiring warrants based on probable cause for most searches, especially in private homes.
Key Exceptions (When Police Can Enter Without a Warrant):
Consent: If you or someone with authority over the property voluntarily lets them in.
Exigent Circumstances: Emergencies where there's immediate danger, a suspect fleeing (hot pursuit), or evidence about to be destroyed.
Plain View: If officers are lawfully present and see evidence of a crime in plain sight.
Community Caretaking: In some specific non-investigative community roles, though this is a narrow area.
Consequences of Illegal Entry:
Evidence found during an illegal, warrantless entry is often excluded from trial under the exclusionary rule, known as the "fruit of the poisonous tree".
In Summary:
A home is highly protected, and a judge's warrant is the standard.
Warrantless entry is unconstitutional unless one of the specific, legally recognized exceptions applies.