How do I report a cryptocurrency ATM or QR code scam?

Good afternoon, I'm seeking assistance regarding a suspected cryptocurrency ATM or QR code scam. Could you please elaborate on the steps I should take to officially report this issue? I've come across a suspicious ATM or QR code that seems to be involved in fraudulent activities, and I'm concerned about the potential implications. I'd like to know the proper authorities to contact, any necessary evidence I should gather, and any other relevant information that could aid in the investigation. Your guidance in this matter would be greatly appreciated.