Yes.
Added: Drug testing conducted by WHO? If by law enforcement, they must have reasonable suspicion that you are under the influence of narcotics.
If by private employer as a pre-employment or as a requirement for keeping your employment, yes.
A search cannot be conducted without a warrant, which cannot be obtained without evidence of reasonable suspicion. This reasonable suspicion is often referred to as probable cause.
Yes, and it is very common if there is reasonable suspicion but not probable cause for entry without a warrant.
Police can detain you without cause if they have reasonable suspicion that you are involved in criminal activity or if you are being arrested with a warrant.
Law enforcement officials cannot search a house with a warrant on suspicion alone. The law is specific in that there must be some probable cause in suspecting a violation of the law exists. Without probable cause or an eye-witness, there is nothing but suspicion.
Yes, a police officer can legally approach a parked car without a warrant or probable cause as long as they are conducting a routine patrol or have reasonable suspicion of criminal activity.
Yes, a police officer can detain a suspect without a warrant if they have reasonable suspicion that the suspect has committed a crime or is about to commit a crime. This is known as a "Terry stop" based on the Supreme Court case Terry v. Ohio.
No, it is not permissible to fish on private property without a license.
A trooper under the Patriot act can search a car if they have reasonable suspicion something is wrong. They can also search a car for no reason if they have a warrant from a judge.
Only mere SUSPICION was needed in the writ of assistance
No, it is not permissible to sign your wife's check without her authorization.
No, it is not permissible for students to take pictures of other students without their permission.
No, it is not permissible to remove your neighbor's fence that is on your property without their permission.