- How the CLEA Exam Is Built: 19 Equal Skill Sets
- Format, Fees and Proctoring Mechanics
- Foundations: Domains 1-3
- Data and Research: Domains 4-7
- Statistics, Qualitative Work and Spreadsheets: Domains 8-11
- Time, Intelligence and Mapping: Domains 12-15
- Writing and Products: Domains 16-17
- Series Analysis and Organized Crime: Domains 18-19
- How the 70% Rule Shapes Your Study Plan
- Sequencing the 19 Skill Sets Across Your Prep
- Frequently Asked Questions
- The IACA exam has 190 questions: exactly 10 from each of 19 skill sets, so no domain outweighs another.
- You need at least 70% in every skill set and overall; one failed section is only forgiven at committee discretion.
- The exam is closed book, four hours long, and mixes multiple-choice, true/false, fill-in and short-answer items.
- The fee is $175 with a current IACA membership; retakes cost $75.
How the CLEA Exam Is Built: 19 Equal Skill Sets
The Certified Law Enforcement Analyst (CLEA) credential is administered by the International Association of Crime Analysts (IACA). Its exam does not use the lopsided domain weighting you may know from other professional certifications. Instead, the exam draws exactly 10 questions from each of 19 skill sets, for a total of 190 scored questions. Every skill set therefore carries an identical share of 10/190, which works out to roughly 5.2632% each. That figure is a calculated and rounded value, not a percentage printed in IACA's official documents, and there is no "largest domain" to prioritize.
This equal structure changes how you should think about preparation. A candidate who is brilliant at GIS and statistics but weak at analytical writing or organized crime cannot offset those gaps with strengths elsewhere, because each skill set is scored against its own threshold. If you want a broader view of how the credential fits together before diving into the domains, start with What Is CLEA Certification? and then return here for the domain-by-domain breakdown.
Format, Fees and Proctoring Mechanics
The CLEA exam is a committee-administered browser exam delivered through Moodle, taken with an approved in-person proctor rather than through remote proctoring. Understanding the mechanics early prevents surprises on exam day.
| Element | CLEA Detail |
|---|---|
| Administrator | International Association of Crime Analysts (IACA) |
| Delivery | Browser-based on Moodle, approved in-person proctor |
| Length | 190 questions, 4-hour limit |
| Question types | Multiple-choice, true/false, fill-in, short-answer |
| Open/closed book | Closed book; scratch paper, spreadsheet/calculator and internet only as directed |
| Exam fee | $175 (published developing-country rate: $75) |
| Retake fee | $75; volunteer waivers subject to approval |
| Membership | Current IACA membership required; no non-member tier |
| Languages | English/Spanish, plus an international option |
Four hours for 190 questions averages a little over a minute per item, but the mix of formats matters. Fill-in and short-answer questions take longer than true/false items, so you will want to bank time on quick questions. The unscored question allocation, if any, is not disclosed. For a full fee walkthrough, see CLEA Certification Cost 2026: Complete Pricing Breakdown, and for eligibility details, read CLEA Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Foundations: Domains 1-3
The first three skill sets establish the professional vocabulary and context of crime analysis. They are often underestimated because they sound "easy," yet they are the domains where practicing analysts most often lose points to imprecise definitions.
Domain 1: Crime Analysis Terms, Concepts and Processes
This skill set tests whether you speak the discipline's language precisely and understand how analysis moves from data to action.
- Distinguish the major types of crime analysis (tactical, strategic, administrative, investigative, intelligence) and what each produces
- Know the stages of the analytic process and where each fits in a real workflow
- Be ready to define terms exactly, since fill-in and short-answer items reward precise wording
Domain 2: Law Enforcement Models
Analysts do not work in a vacuum; they support agency strategies. This domain covers the policing philosophies and management frameworks that shape analytical demand.
- Understand how models such as community policing, problem-oriented policing, intelligence-led policing and data-driven approaches use analysis
- Connect each model to the type of analytical product it typically requires
- Recognize how an analyst's role shifts depending on the agency's operating model
Domain 3: Criminal Behavior
Here the exam tests the theory that explains why and where crime occurs, which underpins pattern recognition and prevention recommendations.
- Know the core criminological and environmental theories analysts apply to patterns
- Be able to apply a theory to a described scenario, not just name it
- Understand offender decision-making and how it informs series and hotspot work
Data and Research: Domains 4-7
This block covers where data comes from, how it is managed, and how analysts design sound inquiries. Candidates with a records-management or IT background tend to find these comfortable; those coming from patrol or investigative backgrounds should budget extra time here.
Domain 4: Law Enforcement Data and Crime Analysis Data Sources
Know the systems and records that feed analysis, along with their strengths and limitations.
- Understand common sources such as records management, computer-aided dispatch, and incident-based reporting systems
- Recognize data quality limitations, including underreporting and classification inconsistencies
- Know which source suits which analytic question
Domain 5: Internet Resources
This skill set addresses finding, evaluating and responsibly using online information in an analytic context.
- Evaluate source credibility and reliability before incorporating open-source information
- Understand the role of public records, social media and open-source resources in analysis
- Be aware of the legal and ethical boundaries of online research
Domain 6: Crime Analysis Data and Data Management
Raw data rarely arrives analysis-ready. This domain tests how you clean, structure and maintain it.
- Understand data cleaning, coding, geocoding preparation and database fundamentals
- Know how to handle missing, duplicate and inconsistent values
- Be familiar with data documentation and security practices
Domain 7: Applied Research Methods
This is the logic of inquiry: how to frame a question and test it credibly.
- Understand research design, hypotheses, variables, sampling and evaluation of interventions
- Recognize threats to validity and common sources of bias
- Be able to critique a described study or evaluation design
If you are planning how to approach all of this material in order, the strategies in CLEA Study Guide 2026: How to Pass on Your First Attempt pair well with this domain overview.
Statistics, Qualitative Work and Spreadsheets: Domains 8-11
Quantitative skill sets are where many candidates feel most anxious, and the closed-book format means you cannot look up formulas. Spreadsheet or calculator access is permitted only as directed, so confirm what your proctor session allows rather than assuming.
Domain 8: Descriptive Statistics
The workhorse measures analysts use daily.
- Measures of central tendency, dispersion, distribution shape, rates and percent change
- Knowing when the mean misleads and the median or mode serves better
- Interpreting results in plain language, since short-answer items often ask you to explain, not just calculate
Domain 9: Advanced Statistical Concepts
This goes beyond summary measures into inference and relationships.
- Correlation versus causation, significance concepts, regression ideas and probability fundamentals
- Understanding what a statistical result does and does not tell you
- Recognizing misuse of statistics in published or agency claims
Domain 10: Qualitative Analysis
Not every crime problem is solved with numbers. This domain covers narrative and non-numeric evidence.
- Methods for analyzing reports, narratives, interviews and field observations
- Strengths and limits of qualitative evidence, including subjectivity concerns
- How to combine qualitative and quantitative findings into one assessment
Domain 11: Spreadsheet Operations
A practical skill set that rewards hands-on familiarity over memorization.
- Sorting, filtering, formulas, functions, pivot-style summarization and charting
- Recognizing the right function or approach for a described task
- Practicing in an actual spreadsheet so the logic feels automatic under time pressure
Time, Intelligence and Mapping: Domains 12-15
These four skill sets represent the signature analytic techniques of the profession and are where applied experience pays off most.
Domain 12: Temporal Analysis
When crime happens is as actionable as where.
- Analyzing time of day, day of week, seasonality and trends
- Handling aoristic and uncertain-time events where the exact time is unknown
- Translating temporal findings into deployment and prevention recommendations
Domain 13: Intelligence Analysis and Intelligence Charting
This covers the link and relationship analysis traditionally used against criminal networks and enterprises.
- Link charts, association matrices, flow and timeline charting conventions
- Source evaluation and reliability grading concepts
- Understanding how intelligence products differ from tactical crime analysis products
Domain 14: GIS and Crime Mapping
Core mapping literacy for the profession.
- Geocoding, map projections and coordinate systems, thematic map types and cartographic design
- Choosing an appropriate map for the question and audience
- Recognizing common mapping errors that mislead readers
Domain 15: Spatial Analysis and Forecasting
Moving from drawing maps to analyzing and anticipating spatial patterns.
- Hot spot identification techniques and spatial statistics concepts
- Basic forecasting approaches and their limitations
- Interpreting spatial results responsibly, including edge effects and scale choices
Writing and Products: Domains 16-17
Analysis that cannot be communicated is analysis that does not change decisions. These two skill sets are often where short-answer questions show up most heavily, and they punish vague, rambling responses.
Domain 16: Effective Analytical Writing
Clarity, structure and audience awareness.
- Writing concisely for command staff, investigators, patrol officers and the public
- Grammar, organization and the discipline of leading with the finding
- Distinguishing facts, analysis and recommendations in a product
Domain 17: Analytical Products
Knowing which product to build, for whom, and what belongs in it.
- Bulletins, alerts, reports, briefings and presentations, and their typical audiences and shelf lives
- Matching product type and level of detail to the decision at hand
- Visual design principles that make findings easier to act on
Candidates who already produce these deliverables on the job have a natural advantage, which is one reason experience requirements matter so much; see CLEA Jobs for a sense of the roles where this daily work happens.
Series Analysis and Organized Crime: Domains 18-19
Domain 18: Applied Crime Series Analysis
Linking offenses to a common offender or group and supporting investigators in closing a pattern.
- Identifying and defining series, patterns and trends, and how they differ
- Comparing modus operandi, victim and target selection, and offender characteristics
- Producing leads and predictions about likely next events without overreaching on the evidence
Domain 19: Organized Crime
The final skill set addresses structured criminal enterprises, a topic many municipal-level analysts rarely encounter day to day, which makes it a classic blind spot.
- Characteristics and structures of organized criminal groups and enterprises
- How intelligence and charting techniques are applied against networks
- Terminology and concepts you should not assume you already know from routine casework
Key Takeaway
Look at your daily work and identify which of the 19 skill sets you almost never touch. Those are your real risk areas. Organized Crime, Advanced Statistical Concepts and Qualitative Analysis are common blind spots for analysts who live inside tactical, map-driven workflows.
How the 70% Rule Shapes Your Study Plan
The scoring rule is what makes domain knowledge so important. You need a minimum of 70% in each skill set and 70% overall. With 10 questions per skill set, that means roughly 7 correct answers in every domain, with no room to "bank" extra points from stronger areas. If you fall short in a single section, the committee may use discretion when you score at least 80% overall, but that is not automatic and should never be part of your plan.
The pass rate is not publicly disclosed, so be skeptical of any figure you see quoted online. For a measured look at what is and is not known, read CLEA Pass Rate 2026: What the Data Shows, and for the scoring thresholds in detail, see CLEA Passing Score 2026: Exactly What You Need to Pass. If you want to gauge how demanding the exam is relative to your background, How Hard Is the CLEA Exam? Complete Difficulty Guide 2026 is a useful companion.
Sequencing the 19 Skill Sets Across Your Prep
Generic study habits matter far less than deciding which skill sets to tackle in which order. A reasonable approach is to front-load the domains that build on each other and leave integrative, applied topics for later. The sample timeline below groups the 19 skill sets into four phases; stretch or compress it to fit your own calendar.
Vocabulary and Data Foundations
- Domains 1-3 for definitions, models and behavioral theory
- Domains 4-6 for sources, internet research and data management
- Why first: later quantitative and mapping topics assume this vocabulary
Quantitative Core
- Domain 7 research methods, then Domains 8 and 9 statistics
- Domain 11 spreadsheet drills alongside the statistics so concepts become muscle memory
- Domain 10 qualitative analysis as a contrast to the numbers
Analytic Techniques
- Domains 12-13 for temporal analysis and intelligence charting
- Domains 14-15 for GIS, mapping, spatial analysis and forecasting
- Domain 18 series analysis, which draws on all of the above
Communication and Gap Closing
- Domains 16-17 writing and products, practiced with timed short answers
- Domain 19 organized crime, reserved for dedicated review since it is a common blind spot
- Full-length timed review using practice questions from the CLEA practice test
For a compact refresher once you are in the final stretch, the CLEA Cheat Sheet 2026: One-Page Review of Must-Know Facts condenses the high-yield points, and testing windows are covered in CLEA Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Whether the credential pays off for you depends on your career path, which is explored in Is the CLEA Certification Worth It? Complete ROI Analysis 2026 and CLEA Salary Guide 2026: Complete Earnings Analysis. To test your readiness across every skill set, work through timed practice questions on the CLEA Exam Prep practice test site, and use them to find which of the 19 areas needs another pass before you register.
Frequently Asked Questions
The exam covers 19 skill sets, with exactly 10 questions drawn from each, for 190 questions in total. Every skill set carries an equal 10/190 share, roughly 5.2632% when calculated, though IACA does not print that percentage officially.
None. All 19 skill sets are equal. Because you must reach at least 70% in each one, the practical priority is your weakest domain, not a statistically "biggest" one.
The standard is a minimum of 70% in every skill set and overall. The committee may exercise discretion for one failed section if your overall score is at least 80%, but this is not automatic, so do not count on it.
No. The exam is closed book. Scratch paper, a spreadsheet or calculator, and internet access are allowed only as directed by the exam instructions and your approved proctor, so confirm the specifics before test day.
Not verifiably. The domain list here is based on IACA's January 2024 Program Outline and May 2021 skill-set study resources. IACA has not published a confirmed new 2026 version, so check the official IACA certification page for any updates before you begin studying.