How to get serial number to a stolen laptop- i don't have receipt/box. need it for police report. can i get it with APPLE ID?

Try this site and log in with your Apple-ID. if your device is listed, Apple support MAY be able to provide your serial number, otherwise not.

My Support - Official Apple Support

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Were you able to click through links to get the serial number, or did you have to telephone or online chat to get it?