Sorry to hear somebody stole your camera. There isn't a way to trace it but check out this help article from Nest. What to do if your Nest cam or doorbell is stolen - Google Nest Help
With a police report Nest can help you replace certain devices. Hopefully that will help.
Thanks for answering, JillG.
Shunter2540, so sorry to hear about this unfortunate incident. What type of Nest camera is this? Also, just as JillG had suggested, have you had the chance to file a police report?
Just checking in to see if you still need assistance with this issue. We'll leave this topic open for another 24 hrs in case there are any follow up questions or comments. Please let me know if you need further assistance.