How do I go about doing this ? <| sep |> One and the same . <| sep |> what mouse is that ? <| sep |> Your first problem here is that you ' re already of the mind set that this is your dog , and you ' ve already justified in your mind that it ' s acceptable to keep someone else ' s property based on limited information . Mals are an intense , highly active breed . The fact that that dog ' s coat is in such great condition , he ' s not very underweight if at all and the prong collar he was in didn ' t leave marks tells me that he hasn ' t been missing long . It wouldn ' t take very long at all for a dog like that to look like an absolute wreck simply from running the streets , no abuse or neglect necessary . The vet speculating on abuse based on a stray dog dog being slightly malnourished andor dehydrated is unprofessional at best . Read this . And after you read that , your best bet , barring a Malinois rescue in your area , is to find a local IPO club and ask them if they know who the dog belongs to . Odds are , they probably will if the dog is even from your immediate area , I think you underestimate just how far a Mal is capable of traveling , and if not , someone experienced with the breed may be able to take the dog until his owner can be found , and they ' ll likely have the resources to network in order to find them .