I’m curious what sort of notice was given to this person that the phone was evidence. For example was she arrested, and had her phone on her, and then the polic

I’m curious what sort of notice was given to this person that the phone was evidence. For example was she arrested, and had her phone on her, and then the police never returned it, or was there a search warrant/subpoena and she was given a receipt for items held under that order?