Law Enforcement Psychological Services, Inc. (LEPS) is the oldest and largest psychological screening services firm for police and public safety agencies in the San Francisco Bay Area, and one of the biggest independent firms providing these services in the USA.. LEPS’ founder is one of the pioneers of the public safety pre-employment psychological assessment industry and has provided pre-employment screening services for public safety agencies for over 40 years. It is our goal to provide our clients with the best psychological services available using the most up to date assessment practices and psychological measures that are designed specifically for the public safety industry.