Why would protein profiling be used instead of dna profiling

Perhaps because the genetic disorder you are maybe investigating originates in the protein, not the DNA. Investigating the DNA would not achieve anything. I don't really see why this would be used in a crime scene, however.

regents of the university of california v. bakke, 438 u.s. 265 (1978), was a landmark decision by the supreme court of the united states. it upheld affirmative action, allowing race to be one of several factors in college admission policy.