SFST Guide and Grade

A field-ready reference, study, and evaluation tool for law enforcement officers conducting or studying Standardized Field Sobriety Testing (SFST). SFST Guide & Grade brings SFST procedures, supplemental tests, study materials, randomized test tools, and field grading together in one streamlined, offline-first app. FIELD-READY SFST REFERENCE Quickly access procedures and reference information for: Horizontal Gaze Nystagmus (HGN) Walk-and-Turn (WAT) One-Leg Stand (OLS) Alphabet Recitation Counting Backward Romberg Balance Modified Romberg Each test has its own organized guide with procedures, scripts, hints, and available tools. STUDY & REVIEW Use the built-in guides and flashcards to review SFST concepts wherever you are. Study standardized and supplemental tests, review procedures, and reinforce your knowledge without needing an internet connection. RANDOMIZED TEST TOOLS Counting Backward and Alphabet Recitation include built-in random pair generators. Generate a new Start/End number or letter pair with one tap. Generated pairs follow the app's configured guidance, avoid immediately repeating the previous pair, and are designed to provide practical test scenarios for study and field preparation. FIELD GRADING Work through an SFST evaluation in one place. Record observed clues using clear + and − controls, track your running total, and see the applicable decision threshold while you work. Session-based grading helps keep observations organized from one test to the next, with a final summary of the evaluation. DESIGNED FOR THE FIELD SFST Guide & Grade is built around a simple interface designed to keep important information easy to find. Large, clear controls Dark-friendly interface Haptic feedback Accessible touch targets Clear scoring states Smooth navigation and transitions Offline-first functionality The app is designed to remain useful in environments where an internet connection may not be available. PRIVACY & OFFLINE OPERATION The core guide, grading, study, and test tools work without an internet connection. SFST Guide & Grade does not require a network connection to browse its reference material or use its built-in tools. Evaluation information is handled locally during an active session and is not designed to create a permanent database of sensitive evaluation records. FOR OFFICERS & AGENCIES The app includes a dedicated Letter to Department Administrators explaining its purpose, capabilities, offline-first design, and limitations. The letter can be copied or shared directly from the app. Image credits are also provided within the app for transparency regarding the visual reference material used throughout the application. IMPORTANT SFST Guide & Grade is a professional reference, study, and documentation aid. It does not make legal determinations, determine probable cause, or independently determine impairment. Always follow your agency's policies, applicable law, and current SFST training and instructional materials.