If you have an existing Bluetooth device like a Tile then you can reprogram it to emulate an AirTag and Apple users will help you track it https://www.theverge.

If you have an existing Bluetooth device like a Tile then you can reprogram it to emulate an AirTag and Apple users will help you track it https://www.theverge.com/2021/3/4/22313461/openhaystack-apple-find-my-network-diy-airtags https://www.theverge.com/2021/3/4/22313461/openhaystack-appl... The worrying part is this could be combined with countermeasures to prevent the anti stalking measure from working and even prevent it being discovered by a bug detector. Thankfully Apple has a lot of visibility of the system so presumably would be able to track down bad actors and aid law enforcement.