How much evidence is needed for the police to raid a home?

[giganticairport883]

Lets say hypothetically the police suspect someone of being a graffiti writer. How much evidence would the police need to raid the suspects home? and what evidence would be enough to be convicted of the crime

[Eric]

evidence could be enough for this but for them to raid the house they need a search warrant for the house and if its graffiti it won't be their top priority and there is no way for them to get in without it really

[Dan Brake]

All they need is a search warrant, not sure what it takes to acquire a search warrant though.

[RadicalDude]

Most likely evidence would be a tip from a witness or maybe surveilance video. For a conviction it would require witness testimony or video. They'd probably show also some sort of document of the grafiti like a photo and of course they'd try to catch the suspect w/ paint but it doesn't prove much without witness, video, or confession.

[clark k]

That's easy. they need enough tp convince a judge that the person is probably (Probable Cause) the grafitti bandit and there is probably evidence of that inside the house. The Judge issues the Search warrant, not the cops.

Then, to convict anybody of any crinme they need to be able to prove beyond a reasonable doubt that the person did it.

[billcroghan]

Clark has it right. If they can convince a judge of probable cause they can get the warrant. Many thing might be used for that, i.e. witnesses, evidence found at the scene of the graffiti, your connection with the graffiti subject your brags about it on Facebook, etc. .The warrant will describe specific things they are looking for like paint, paint cans, brushes, traces of paint on clothing that can be traced to you, paint on your person, your fingerprints on the spray cans, or in the case of one idiot I heard of, all of the above and pictures of his work all over his walls.