You have to prove it is an evidence of a crime to start with, speculation is not a fact. My property, my business, i can smash the phone and no one has anything to do or say unless there’s an undeniable fact that there’s an evidence there and it got destroyed, else, it’s no one’s business.

>Note this isn't the same as banning burning documents or microwaving computers, only doing so after you're aware there's an ongoing investigation.