how do you insure that the pet is being returned to the rightful owner?

There have been some situations where lost dogs were returned to someone claiming to be the owner and the well-meaning finder of the dog was not so sure that they were returning the dog to the actual owner.  
Many rescuers are already aware of these concerns, but here are a few tips that might help to ensure the dog is going back to the rightful owner and not someone trying to get a dog that isn't theirs:

1) Do have the dog scanned for a microchip at a local vet or shelter.
2) Do post only a minimal description of the dog in any Found Dog ads you place. 
3) Do post Found Dog fliers in the neighborhood the dog was Found and also check the area for any Lost Dog fliers matching the dog's description.
4) Do post Found Dog ads on Craig's List and in the newspapers, as well as fill out Found cards at each of the local shelters.  
5) Do check the shelters, newspapers, Craig's List, etc. for Lost Dog ads matching the description of the dog you've found.
6) Do ask any potential owner if they can provide a photo of their dog or vet records or adoption paperwork or anything else that would prove ownership.
7) Do let the potential owner do most of the talking and make sure they describe their lost dog in detail.  Make sure they can describe unusual features, such as an unusual marking, a different-colored eye, an all-black dog except hind left leg has two white toes, etc.
8) Do not ask leading questions.   For example, if their dog has a unique feature, let them describe it. Instead of saying, "Does your dog have a crimp in its tail?" ask if there is anything distinct about their dog's tail and let them provide the details.  
9) Do not post a photo of the found dog.  This gives way too much info to people wanting a dog that is not theirs.

Comments

[Animal Insurance]

Great tips and really helpful, everyone should keep all the things in mind.