Note: The DearEsq free 'ask a lawyer' site is offered as a free informational service to the public and is not intended as legal advice. Laws vary from state-to-state, and in addition every situation is unique, and relevant facts may not be known. The answer to the question posed below may not apply to in your state or to your situation. For legal advice in your state and your situation you should consult with an attorney in your state who is familiar with the rules and laws in your state.
“I gave my PC to a repair shop. On it, he thought he saw child porn (He was wrong) so he took it to police office. Did he stay in legal bounds? I didn’t give permission.”In many, if not most, states such employees are bound by state law to report anything that they believe indicates child abuse, including child pornography. You may find this article of some interest, and instructive:
Question: Computer Technician Busts Child Porn Enthusiast Employer