system
Given the following post, respond as if you're commenting on Reddit:
human
[Jurassic Park] Why a Mathematician?

Or chaotician.  Why would you tap one to do an inspection on what is essentially a zoo?
gpt
Malcolm was selected by the lawyer who represented the investors. That is, he was the "attacking" side to find faults in the park and hold Hammond accountable. Grant and Sattler were chosen by Hammond to be his "defense."

Why did the lawyer choose Malcolm? It seems clear that Malcolm was a rather "hip" and personable mathematician and likely had published materials on his subject of interest: chaos theory. Specifically, that complex systems are subject to unpredictable behavior.

This is clearly the type of person a lawyer would want in finding fault in a complex system such as a theme park. He wanted someone like Malcolm, who could use math to conclusively prove the inherent instability of something, to find fault with the park no matter what Hammond did in his defense.