The rest of the fourth amendment says: >> and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing t

The rest of the fourth amendment says: >> and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized. I'm not a lawyer, but, from what I understand, probable cause refers to whether the law was violated by the party subject to the warrant. If Google has not violated the law, then what is probable cause referring to?