How to find the necklace left in the hotel without monitoring?

Please look for it yourself first, and then look through your own package to see if you have been caught somewhere! If you can't find it, you can ask the hotel staff. If you can't find help, you can choose to call the police and protect your rights and interests through legal means. Of course, if your necklace is expensive, people who find it will not return it. Let's just say, break the money and avoid disaster. Don't be angry!