Then law enforcement, a prosecutor and a jury would get involved. Hopefully law enforcement would be the first and final stage if it was merely the case that a person pressed “ok” by accident.
This is exactly the kind of thing that is to be avoided: premature escalation, tying up resources, increasing costs, and raising the stakes and probability of bad outcomes.
Do you think once you are charged with possessing child porn - will you still have your job, your friends, your family, your life as you know it? Will a court decision - months or years later - restore what you have lost?