"Who is looking for a judge?"
Translation:Ki keres bírót?
Might help if you read earlier comments here. :)
But I'll take this opportunity to elaborate a bit. If you have a question word, you want to put the focus of the sentence on that. You're interested in who is looking for the judge. In Hungarian, focus is determined by the verb: the things that are directly in front of the verb are the focal point in your sentence. So ki and keres have to stick together.
You are left with two possible structures here: "Ki keres (egy) bírót?" and "(Egy) bírót ki keres?"