"Without a warrant the government doesn't have a right to peer beneath your clothes, " says Rotenberg.
These decisions do indeed indicate that government investigators will sometimes be able to use UAVs without a warrant.
Diaz (holding that a police officer can search the contents of a cellphone after a lawful arrest without a warrant).
Antoine Jones, a Fourth Amendment case in which the defendant objected to having a GPS placed without a warrant on his vehicle.
The Fourth Amendment guarantees against general searches and searches without a warrant.
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Separately, the court agreed to decide whether the police can covertly install a GPS tracking device on a suspect's car without a warrant.
In other words, if the police heard someone screaming, they were free to break down a door and enter a home without a warrant.
Soin had proposed that if police receive a complaint involving family violence, they could make an arrest without a warrant or a court order.
This year, the Supreme Court is set to decide whether a dog -- and, presumably, a drone -- could sniff even your house without a warrant.
Stored Communications Act, the government (including the IRS) can look at your emails without a warrant as long as they are six months back or older.
In California and other states, police can legally search phones even without a warrant, though courts around the country are still producing conflicting rulings on the issue.
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Law professor Orin Kerr has concluded that ECPA may actually be unconstitutional and violates the Fourth Amendment in its allowing law enforcement to read emails without a warrant.
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An Arab-America citizen called Yasir Afifi sued the FBI for violating his privacy rights by placing a tracking device on his car without a warrant because of his racial background.
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Congress should resist any proposal to give the government power to wiretap with or without a warrant on any standard less than probable cause to believe that a crime is being committed.
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Defense sources say Fiato and possibly several other people heard Detective Philip Vannatter say police considered Simpson a suspect almost from the start -- before they entered Simpson's home without a warrant.
The federal government says authorities can use electronic surveillance to track vehicles on public roads without a warrant, citing a 1983 Supreme Court ruling that declared there is no reasonable expectation of privacy there.
The bill allows surveillance of foreign targets without a warrant, unless those targets are likely to communicate with people in the U.S. In those cases, officials could seek broad, "blanket" warrants from a secret federal intelligence court.
The ECPA allows some of a suspects data to be tracked in real time via electronic devices without a warrant, using only a court order from a judge that doesn't require the same level of evidence showing that a suspect merits surveillance.
And then, lo and behold, last night, in a closed door meeting, Republican senators basically made a deal with the White House saying that they would still allow wiretapping for 45 days without a warrant or informing Congress, but they would still maintain a congressional oversight over the program.
But privacy activists see letting police use DNA information without a warrant or a conviction as another loss for American privacy, with Americans' genetic information held by the government eventually being used for other purposes, just as Social Security numbers were originally not intended to be used for identification.
To identify a bank robber, prosecutors in Connecticut obtained records for 169 phones in 2009 without a search warrant.
Schily has attracted wide-ranging criticism in Germany from civil rights groups after reports that he wanted federal police to have the right to carry out searches without a court warrant.
The justices seemed troubled by that position at arguments in November, where the government acknowledged it would also allow attaching such trackers to the justices' own cars without obtaining a warrant.
In a landmark case in December, the U.S. Court of Appeals for the Sixth Circuit ruled that the government violated the Fourth Amendment when it obtained 27, 000 emails without a search warrant.
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Magistrate Smith said he was puzzled by cellphone-tracking requests when he was new to the bench: he couldn't find a provision in the law allowing police to track a phone for as long as 60 days without a search warrant.
Though, in one recent case, a court threw out the black box evidence used against a California man to convict him of vehicular manslaughter because the police pulled the data from the black box of his SUV without getting a warrant first.
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The embassy says the police raid was carried out without a proper search warrant and that no evidence against Mr Saboor was found.
This case and a separate and still pending appeal over police intrusions into homes and cars could have a far-reaching impact on when a person's private contents can be subjected to a search without clear probable cause or a valid warrant.
President Bush obviously thinks the court was wrong, since he ordered the National Security Agency (NSA) in 2002 to begin eavesdropping on American citizens without a court-issued warrant.
In practice, this means that all telephone, text, fax and email messages passing in and out of Sweden will be subject to monitoring without a court order or warrant once the legislation comes into effect in January 2009.
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