Can you say destruction of evidence is a crime?
There are many circumstances where it is a crime to destroy evidence.
Moral of the story is Don't leave evidence on your phone. Or anywhere else for that matter.
Idiotic statement. Sometimes what isn't actually evidence of anything can be used against you. Just because you have nothing to hide does NOT mean you have nothing to fear.
If you need an explanation why watch this video.
your fingerprints aren't a testimony against yourself. Read the damn thing. "nor shall be compelled in any criminal case to be a witness against himself."
Your fingerprints absolutely can be evidence against you. That's not even a question. The police have a long established right to take your fingerprints when you are arrested and to compare them with gathered evidence.
That said I have a hard time reconciling this with the right against self incrimination in the Constitution. In principle I feel a biometric pass code should be legally no different than a memorized one. Either way you are being forced to potentially incriminate yourself. But I suspect that the legal system will rule that they are different and so if you want your phone to be secure against search and seizure you must avoid biometric pass codes unfortunately. The problem here is that they are not comparing your fingerprints against evidence they have found. They are in effect forcing you to open a lock on their behalf. I don't have a problem with them having the right to search but I don't see why the target of the investigation should be forced to aid in that search. If they can break down a door to do a search (with a warrant) then have that right but I don't see why I should have to hand over the key to the house so to speak.
Professional wrestling: ballet for the common man.