system
Given the following post, respond as if you're commenting on Reddit:
human
[Breaking Bad] Why does Hank have such a hard on for finding Heisenberg from the get go?

He is way more involved than trying to find Heisenberg than anyone else in the DEA, he goes to extreme lengths to find him and when he does (spoilers for season 5b) he doesn't care that it will tear the family apart.

So what is the deal? Did is drug dealer scam him when he was 17?
gpt
Hank is a political animal, at least to a degree, and Heisenberg would be a career-making case. The source of the best meth ever seen? The growing kingpin of New Mexico, America, and eventually the whole freaking world?

And he's a cop. Cops don't like to lose. They don't like the bad guy to get away. Hank kind of assumes that him catching Heisenberg is the natural order of things, and when that doesn't happen, it upsets his sense of how it ought to be. Basically, it quickly morphs from "job" to "obsession."