The LEAB (Law Enforcement Aptitude Battery) is a pre-employment cognitive and skills assessment used by police departments and law enforcement agencies across the United States to evaluate candidates for officer positions. Unlike general aptitude tests, the LEAB is designed around the specific cognitive demands of police work: reading and applying legal procedures, writing accurate incident reports, exercising sound situational judgment, and processing information quickly under pressure.
The battery is divided into five core subtests. The cognitive ability subtest measures verbal reasoning, numerical ability, and spatial reasoning — the mental tools officers use daily when reading statutes, calculating evidence measurements, and interpreting scene diagrams. The writing ability subtest tests grammar, spelling, sentence structure, and the ability to select the best word in context, reflecting the importance of clear, legally defensible documentation. The reading comprehension subtest uses law enforcement passages — pursuit policies, use-of-force continuum descriptions, and departmental procedures — requiring candidates to locate specific facts and draw accurate inferences.
The incident report writing subtest asks candidates to read a scenario and then compose or evaluate a written account, testing clarity, chronological accuracy, and completeness. Finally, the situational judgment subtest presents realistic scenarios involving ethical dilemmas, use-of-force decisions, and public interaction, asking candidates to choose the most appropriate response from several plausible options.
Several different law enforcement aptitude batteries are in use across the United States, and it is important to confirm which one your target agency requires before you begin studying. The LEAB is used primarily by departments in the Midwest and South and emphasizes incident report writing and situational judgment alongside cognitive skills. The NPOST (National Police Officer Selection Test) is widely used in smaller municipal departments and focuses more heavily on reading, math, writing, and map reading. The PELLETB (POST Entry-Level Law Enforcement Test Battery) is specific to California and evaluates reading ability, writing ability, and reasoning through the CLOZE reading format.
If your target department uses the LEAB, pay special attention to the incident report and situational judgment sections — these are the two subtests most unique to LEAB and the areas where underprepared candidates lose the most points. Practicing with realistic police scenarios and reviewing departmental writing standards will give you a significant edge on test day.
Strong incident reports follow a strict format: begin with the date, time, and location; identify all parties; describe events in chronological order using plain, factual language; and avoid opinions, assumptions, or legal conclusions. Practice reading a scenario once, then writing your account from memory without looking back — this mirrors actual test conditions and builds the recall and organization skills the LEAB rewards.
Print this PDF and complete each section under timed, test-like conditions. Score your answers section by section so you can pinpoint which subtest needs the most attention. Many candidates score well on cognitive ability but lose points on incident report writing or situational judgment — both of which reward specific, practiced techniques more than raw intelligence.
After your first practice run, review the answer explanations carefully. For situational judgment questions, focus on understanding why one response is preferred over another — the LEAB rewards responses that reflect professional restraint, community-oriented policing, and adherence to departmental policy rather than personal instinct alone. Repeat the practice test after a few days of targeted review to measure your improvement before the official exam.