A seizure warrant can't be issued in a case like this. The problem is that the police were not confiscating stolen goods. This guy was not in possession of the iphone. All he did was write the article about it. The police took his shit because he may have committed a felony in writing said article. That is against both state and federal law.
This confiscation has zero to do with stolen property laws. If they'd been there to confiscate a stolen iphone it would be perfectly acceptable. But they weren't.
Hmm, interesting. I didn't know his "journalist" credential gave him some level of protection.
I should get a press credential.
Regardless, he still made a dumb move.