Police officers are specially trained to read body language. If they think someone is acting strangely around their presence, for example avoiding eye contact or walking quickly, then officers have the power to stop and search that person on suspicion on criminal activity. They will ask that person for their details and to identify themselves too, in case there is an outstanding warrant on them.
They do it to protect you, the member of public, from harm.
In order to conduct a lawful search the officers must first file a written AFFIDAVIT setting forth their probable cause for requesting the warrant and identifying the premises to be searched. The affidavit is submitted to a judicial officer for review and if found to be proper and legal under the law, the judicial officer signs it making the warrant legally sufficient. The officers actually serving only have to have knowledge that a signed warrant exists for that premises. They do not necessarily need to have it with them, although most do.
"Probable cause". See Related Links.
A search order must be signed by a judge to be valid. Police cannot conduct any search for which a search order is needed if it does not have a valid signature.
I'll give an example. When police come knocking at your door, demanding you to open up and let them search the house, you can say, "No, I need to see your search warrant." The police MUST have a search warrant in order to search your house and if they don't, you can kick them out! :) Hehe.
The police got a search warrent in order to search the suspect's house. The suspect would not allow the police to search his home without a search warrant.
Probable cause
Probable cause.
search warrant
In order to search through someone's home, police officers must aqquire a search warrant, which is just a slip or piece of paper signed by a judge that gives them legal rights to go searching through a person's home. They also must have some sort of evidence on why they are to search someone's home, such as drugs, leads, etc.
In order to search you the police require reason to be suspicious. If someone makes such a claim and its believable the yes they can,
When police officers have a court order to search a home or a person, it is called a search warrant. If a police officer has reasonable suspicions, then they can search a person without a search warrant.
A Search Warrant
Search warrantsSearch warrants are required under the protections of the Fourth Amendment. For a search warrant to be obtained by the police there must be:Sufficient reasons for the search: A warrant may not be issued unless there is sufficient evidence, reason or rationale for the search. Search warrants may not be issued randomly.Stated object of the search: A search warrant must specifically declare what the police are looking for.Location of the search: Search warrants must specify the areas to be searched. For example, a search warrant may include an individual's house, but a separate warrant may be needed to search the same person's garage.
They must provide a judge with probable cause to do a search.