yes they have to have a paper signed by a judge
Are you on parole or probation? If so, yes. If you are not on parole or probation, do the police have a search warrant? If not, I guess I wouldn't let them in my house in the first place. If they do have a search warrant, yes.
Police officer with a search warrant can search any home regardless of the situation.
If the police have a valid search warrant, they can enter your home regardless of whether the person on probation is present or not. The search warrant allows them to search the premises for specific items or evidence related to the drug possession case.
No.
No NO NO they cannot.
If the probation officer is conducting the search then he must be there for it. Every state has its own procedures for conducting searches on their probation clients. Police generally cannot assist probation officers with their search, but probation officers can assist police with theirs. But police must still have a search warrant, while probation officers don't-- IF such search is allowed as part of the subject's condition of the probation. In practice, however, probation officers don't help police with their search because they can easily and unknowingly contaminate the evidence or crime scene. Probation officers' searches generally have a different purpose than police searches. If you're asking if the subject's probation officer must be there to conduct a search, then generally yes, they cannot substitute another probation officer for the subject's assigned PO.
Ive heard of police with a search warrant finding something non-related to the search warrant, and then issuing a new search warrant on the spot regarding the new issue.
If the informant has first hand information and is willing to be named in a search warrant affidavit, then it is likely that the police can get a search warrant. If the informant is not willing to be named then the police may decide that the information is worth assigning to officers who will try to gather more information and obtain a warrant. If the subject is on probation or parole then the parole or probation board may become involved.
Yes. The police can search any items if they have a warrant. It does not matter that no one is there to receive the warrant. The police only have to leave a copy of the warrant at the residence.
A Search Warrant
If they have 'reasonable cause to believe' that the person named in the warrant is in the residence, they may enter and look JUST FOR HIM. They may not conduct a search for anything else BUT, if during the search they see/observe any conduct, or any items, of an unlawful nature IN PLAIN SIGHT they may take proper enforcement actions arising from those 'plain sight' observations. In your probation contract it says that they can search you or your residence at any time, they don't even need a warrent.
There is no consent needed from anybody when there is a valid search warrant in play. The court gives the police the right to search by granting the search warrant.