Recover a ipad

No methods to do what you want.

If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support

If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support

Register your iPad here and Apple will not work on it if repairs are

requested, but Apple will not confiscate it from whoever brought it in.

https://www.gsma.com/services/deviceregistry/

If you mean it was lost or stolen, see the information in If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support and If Find My iPhone or Find My iPad isn't enabled on your missing device - Apple Support including the following:

If your missing device doesn't appear in the Find My app or at iCloud.com/find, you didn't turn on Find My. There's no other Apple service that can find, track, or flag your device for you. But there are steps that you can take to help protect your data.