SFSTs are designed to assess impairment related to which substances?

• A. Alcohol only
• B. Drugs only
• C. Both alcohol and drugs
• D. Neither

Answer: (C)

Standard Field Sobriety Tests are used to detect impairment that affects the nervous system and coordination. The signs these tests look for—trouble with balance, eye tracking, and divided attention—can result from alcohol, but they’re also commonly seen with various drugs. Because impairment from either source can produce similar performance issues, these tests are designed to indicate impairment related to both alcohol and drugs, not just one substance. It’s worth noting that while SFSTs are most validated for alcohol impairment, they still provide useful cues about drug impairment when considered alongside other observations. They’re not drug-specific tests, but they help guide further evaluation when substance use is suspected.