Harry Potter
and the
Goblet of Fire

Death Eaters

In book 4, we see some of the trials that took place that allowed some death-eaters to be freed. Seems to me there's a very easy way to determine whether or not someone is a death-eater — Just look for the mark on the arm.

Lord Voldemort

When Voldemort attacked the baby Harry Potter, something backfired. I'm not sure what happened to his body — I don't think anything's been said about that. But it seems that Voldemort was reduced to some sort of spirit, and that his body was either destroyed or left behind in the Potter house. For many years he barely got by, sometimes taking over the body of animals — Frogs, snakes, etc.

Based on this, I'm thinking that Voldemort wasn't able to carry anything out of the Potter house after his attack. So what happened to his wand? It should have been found in the Potter house. Presumably it would have been destroyed or else kept somewhere where it would be safe.

So why does Voldemort happen to have his own wand? We know that the wand he has is his own wand, the one he got from Ollivander years before. We know this because of the way it interacts with Harry's wand, and because of the "ghosts" that come out of it during this interaction. Something's fishy here!