How to get your passport back, if eaten by the dog?

So, after posting this toon blog – I was asked: “how to get the passport back?”. And this is what I thought and drew.

The dog after losing his house, took the onus on himself to get the passport back. And he greets the officer with his x-ray.

passport&dog

Officer has now no reason but to believe (based on the evidence) that the dog actually ate the passport.