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In America, the 4th Amendment says that evidence cannot be used if it has been illegally obtained, so no.
In Weeks v. United States, 232 U.S. 383 (1914), the United States Supreme Court unanimously held that the warrantless seizure of items from a private residence constitutes a violation of the Fourth Amendment. It also set forth the exclusionary rule that prohibits admission of illegally obtained evidence in federal courts.See below link:
a procedural due process violation
The exclusionary rule is grounded in the Fourth Amendment and it is intended to protect citizens from illegal searches and seizures." The exclusionary rule is also designed to provide a remedy and disincentive, which is short of criminal prosecution in response to prosecutors and police who illegally gather evidence in violation of the Fifth Amendment in the Bill of Rights compelled to self-incrimination. The exclusionary rule also applies to violations of the Sixth Amendment, which guarantees the right to counsel.
In trial, it would constitute "Fruits of the Poisonous Tree", and the evidence would be excluded from trial via Exclusionary Rule.
To come into a home the police need a search warrant to search. Without the warrant the evidence is not admissible in court. It would be an illegal search.
The Exclusionary Rule's purpose is to keep certain evidence from being used against you in a criminal trial. Police procedure in gathering evidence against you is heavily dictated by cases interpreting the Fourth Amendment. Evidence gathered in violation of your Constitutional rights is subject to the Exclusionary Rule.
The general doctrine courts follow is called "fruit of the poison tree." If a defendant's rights were violated, then any evidence deriving either directly or indirectly from that violation is inadmissible in court. The violation "poisons" the evidence obtained illegally and any other evidence discovered as a result. It is not, however, a "get out of jail free" card. If the police illegally search your home without a warrant and find heroin there, they cannot use that as evidence. They can, however, use the surveillance video taken of you two weeks ago showing you selling heroin in the park that made them want to search your home in the first place as evidence.
Mapp v. Ohio
searches and seizures like 3rd amend. protect of privacy (general search warrents) evidence seized illegally without a search warrant may not be used in court.
In a criminal procedure, the inevitable discovery rule allows evidence of a defendant's guilt to be admitted as evidence in a trial. The exclusionary rule judges the admissibility of evidence and under the constitutional law, the evidence collected or analyzed in violation of the defendant's constitutional rights is sometimes inadmissible for a criminal prosecution in a court of law. In simple terms, the inevitable discovery exception to the exclusionary rule allows into evidence illegally seized items that would have been discovered lawfully anyway. This exception allows evidence to be admitted, even though it was seized in violation of the Constitution. In order to successfully assert the inevitable discovery exception, some courts require that the prosecution demonstrate that the police were in the process of actively pursuing a lawful investigation that would have led inevitably to the discovery of the evidence at the time that the evidence was illegally obtained.
In a criminal procedure, the inevitable discovery rule allows evidence of a defendant's guilt to be admitted as evidence in a trial. The exclusionary rule judges the admissibility of evidence and under the constitutional law, the evidence collected or analyzed in violation of the defendant's constitutional rights is sometimes inadmissible for a criminal prosecution in a court of law. In simple terms, the inevitable discovery exception to the exclusionary rule allows into evidence illegally seized items that would have been discovered lawfully anyway. This exception allows evidence to be admitted, even though it was seized in violation of the Constitution. In order to successfully assert the inevitable discovery exception, some courts require that the prosecution demonstrate that the police were in the process of actively pursuing a lawful investigation that would have led inevitably to the discovery of the evidence at the time that the evidence was illegally obtained.