It appears that it is only necessary when there is going to be questioning/interrogation: https://en.wikipedia.org/wiki/Miranda_warning https://en.wikipedia.org

It appears that it is only necessary when there is going to be questioning/interrogation: https://en.wikipedia.org/wiki/Miranda_warning https://en.wikipedia.org/wiki/Miranda_warning Though, it seems as though the police can skip the miranda rights bit and interrogate, if they don't want to use subsequent statements or information in court. There's also the "public safety exception", which doesn't seem to apply for the situation in this particular account.