Which agency is known for analyzing controlled substances?

The Texas Department of Public Safety (DPS) is primarily responsible for the analysis of controlled substances within the state. This agency plays a significant role in law enforcement, which includes the regulation and control of drug trafficking and substance abuse. DPS oversees drug analysis to provide law enforcement agencies with scientific testing results that are crucial for prosecutions and public safety measures.

In contrast, the FBI generally handles federal investigations that may include narcotics trafficking on a broader level rather than state-specific controlled substance analysis. The Texas Department of Transportation focuses on traffic safety and infrastructure rather than substance analysis, and the Environmental Protection Agency is dedicated to environmental protection and does not specialize in analyzing controlled substances related to law enforcement. Thus, the Texas Department of Public Safety stands out as the agency that specifically addresses the analytical needs surrounding controlled substances in Texas.