Explore case management for investigations. Learn about planning, timelines, evidence control, decisions, documentation, review, and reporting. Build organised case handling, accountability, and defensible investigation outcomes today clearly.
The BEHAVE Investigative Framework by Alan Elangovan helps investigators connect behaviour, evidence, motive, timeline, vulnerability, risk, and findings. It supports fair, structured, evidence-based investigations by reducing bias, improving risk assessment, strengthening report writing, and helping investigators reach clear, defensible conclusions across criminal, workplace, school, healthcare, and security cases.
The Rapport-Based Interviewing Model, influenced by Clifford Stott, emphasises building trust, empathy, and communication to encourage cooperation. It supports investigators in reducing resistance, improving information quality, and fostering voluntary disclosure, making it highly effective in interviews, interrogations, and sensitive investigative contexts.
The Mica Endsley Situational Awareness Model explains perception, comprehension, and projection of environmental elements in dynamic settings. It helps investigators maintain awareness, anticipate developments, and make informed decisions, enhancing operational effectiveness, risk management, and response capabilities in complex investigative and security environments.
The Victim-Offender Interaction Model, grounded in Criminal Behavioral Research, examines the dynamics between victim and offender. It analyses patterns of interaction, power imbalance, and situational triggers, helping investigators distinguish conflict from victimisation, identify repeated targeting, and support accurate classification and intervention in criminal and social incidents.
The Advanced PEACE Interviewing Model, evolved from UK Police practice, enhances the structured approach of Preparation and Planning, Engage and Explain, Account, Closure, and Evaluation. It emphasises ethical interviewing, rapport building, and information accuracy, supporting reliable evidence gathering and professional investigative interviewing standards.
The Red Team Analysis Model, rooted in Military Strategy and intelligence practice, challenges assumptions by adopting an adversary perspective. It helps investigators identify vulnerabilities, test strategies, and anticipate threats, strengthening decision-making, reducing bias, and improving operational readiness in complex investigative and security environments.
The Intelligence Failure Analysis Model, grounded in Intelligence Analysis practice, examines why intelligence breakdowns occur. It analyses cognitive biases, information gaps, and organisational issues, helping investigators identify weaknesses, improve analytical processes, and prevent future failures, strengthening decision-making, accountability, and effectiveness in intelligence and investigative operations.
The Case Theory Model, influenced by Legal Practice, involves constructing a coherent narrative explaining how and why an event occurred. It guides investigators in organising evidence, testing hypotheses, and aligning facts with legal elements, ensuring cases are logically structured, persuasive, and capable of withstanding legal scrutiny.
The Investigative Cycle Model, grounded in Investigative Practice, outlines a structured process from information gathering to analysis, action, and review. It helps investigators manage cases systematically, ensure evidence-based decisions, and continuously refine strategies, supporting effective, accountable, and adaptable investigations across diverse operational contexts.
The National Intelligence Model (NIM), developed by UK National Police, provides a structured approach to intelligence-led policing. It integrates data collection, analysis, and decision-making to prioritise threats, allocate resources, and support strategic and tactical operations, enhancing effectiveness in crime prevention and investigative processes.
The Jerry Ratcliffe 3i Model (Interpret, Influence, Impact) supports intelligence-led policing by linking crime analysis to decision-making. It helps investigators interpret data, influence operational responses, and assess outcomes, ensuring intelligence is effectively used to guide strategies, reduce crime, and improve policing and investigative performance.
The Herman Goldstein SARA Model (Scanning, Analysis, Response, Assessment) provides a structured problem-solving approach in policing. It helps investigators identify recurring issues, analyse causes, implement targeted responses, and evaluate effectiveness, supporting proactive crime prevention, community policing, and evidence-based decision-making in investigative and operational environments.
The Alan Elangovan ALAN Model integrates behavioural analysis, structured questioning, and situational awareness to guide investigations. It emphasises adaptive thinking, layered information gathering, and real-time assessment, enabling investigators to detect deception, interpret intent, and make precise, evidence-based decisions in complex investigative environments.
The Questioning Funnel Model, influenced by the Socratic Method, guides investigators from broad, exploratory questions to precise, focused inquiries. It enhances critical thinking, uncovers deeper insights, clarifies inconsistencies, and supports effective information gathering, making it valuable in interviews, interrogations, and analytical investigative processes.
The Interview Funnel Model, influenced by John E. Reid, structures questioning from broad, open-ended inquiries to focused, specific questions. It helps investigators gather accurate information, clarify details, and assess credibility, supporting effective interviews, statement analysis, and progressive disclosure techniques in both cooperative and resistant subject interactions.
The Arrest & Detention Decision Model, grounded in Criminal Procedure practice, guides investigators in determining when to lawfully arrest or detain individuals. It considers legal thresholds, evidence sufficiency, risk factors, and procedural safeguards, ensuring decisions are justified, proportionate, and compliant with due process and investigative requirements.
The Use of Force Continuum Model guides law enforcement officers in applying proportionate, lawful, and accountable force. It supports decision-making, officer safety, public protection, de-escalation, documentation, and ethical policing by matching response levels to threat, resistance, and situational risk.
The Entrapment Avoidance Model, influenced by Criminal Law doctrine, ensures investigators do not induce individuals to commit offences they would not otherwise commit. It guides lawful conduct in undercover operations, preserving evidence integrity, protecting suspects’ rights, and ensuring investigations withstand legal scrutiny and judicial review.
The Bow-Tie Risk Model influenced by Royal Dutch Shell visually links potential causes, preventive controls, consequences, and mitigation measures, enabling clear understanding of risk pathways and strengthening proactive risk management and incident prevention strategies.
The Root Cause Analysis influenced by Kaoru Ishikawa identifies underlying causes of problems through systematic investigation, using tools like fishbone diagrams and “5 Whys,” enabling effective corrective actions, prevention of recurrence, and continuous improvement in processes and investigations.
The Decision Tree Analysis Model influenced by John von Neumann and Oskar Morgenstern uses branching structures to map choices, probabilities, and outcomes, enabling systematic evaluation of risks, consequences, and optimal decisions in complex scenarios.
The Analytical Hierarchy Process developed by Thomas L. Saaty structures complex decisions into hierarchical levels, using pairwise comparisons and weighting to evaluate alternatives, enabling systematic, quantitative, and consistent decision-making across multiple criteria and priorities.
The Hypothesis Testing Model developed by Karl Popper emphasizes forming testable hypotheses and attempting to falsify them through evidence, enabling objective analysis, critical thinking, and systematic validation of conclusions in investigative and scientific inquiry.
The 5W1H Analysis Model influenced by Rudyard Kipling uses six key questions—Who, What, When, Where, Why, and How—to systematically gather information, structure analysis, and ensure comprehensive understanding in investigations, problem-solving, and decision-making processes.
The OODA Loop Model developed by John Boyd describes a rapid decision cycle of Observe, Orient, Decide, and Act, enabling individuals and organizations to adapt quickly, outpace adversaries, and maintain strategic advantage in dynamic, high-pressure environments.
The Intelligence Cycle Model developed by Sherman Kent describes a structured process of direction, collection, processing, analysis, and dissemination, enabling systematic production of actionable intelligence to support informed decision-making in security, policing, and national defense contexts.
The Evidence Lifecycle Model influenced by forensic science practice outlines the stages of evidence from identification and collection to analysis, storage, presentation, and disposal, ensuring integrity, traceability, and compliance throughout the investigative and judicial process.
The Chain of Custody Model influenced by legal practice standards documents the chronological handling, transfer, and storage of evidence, ensuring integrity, authenticity, and accountability, thereby maintaining admissibility in court and preventing contamination, tampering, or loss throughout the investigative process.
The DFRWS Investigation Model developed by the Digital Forensic Research Workshop outlines a systematic approach to digital investigations, including identification, preservation, collection, examination, analysis, and presentation, ensuring methodological rigor, evidence integrity, and defensible forensic conclusions.
The NIST Digital Forensics Framework developed by the National Institute of Standards and Technology provides a structured process for collection, examination, analysis, and reporting of digital evidence, ensuring consistency, reliability, and legal defensibility in forensic investigations.
The ACPO Digital Evidence Model developed by the Association of Chief Police Officers establishes principles for handling digital evidence, emphasizing preservation, integrity, audit trails, and lawful access to ensure admissibility and reliability in forensic investigations.
The Digital Forensic Investigation Model developed by Eoghan Casey provides a structured approach to identifying, preserving, analyzing, and presenting digital evidence, ensuring integrity, reproducibility, and legal admissibility in investigations involving electronic devices and cyber-related activities.
The Follow-the-Money Model influenced by financial investigation practice traces the flow of funds across accounts, entities, and jurisdictions to uncover illicit activities, identify beneficiaries, establish evidential links, and support asset recovery, prosecution, and disruption of criminal financial networks.
The Money Laundering Cycle Model influenced by the Financial Action Task Force describes the three stages of laundering—placement, layering, and integration—highlighting how illicit funds are introduced, concealed, and legitimized, guiding detection, compliance, and prevention strategies in financial investigations.
The Risk Assessment Model influenced by International Organization for Standardization evaluates risks through identification, analysis, and evaluation processes, enabling organizations to understand threats, assess likelihood and impact, and implement appropriate mitigation strategies for informed, structured decision-making.
The Suspect Prioritization Matrix influenced by investigative practice ranks suspects using criteria such as motive, opportunity, capability, and evidence strength, enabling investigators to allocate resources effectively, focus inquiries, and systematically narrow down high-probability individuals in complex cases.
The Signature Analysis Model developed by John E. Douglas distinguishes an offender’s psychological “signature” from modus operandi, analyzing unique, repetitive behaviors driven by internal needs, helping investigators link crimes and understand underlying motivations and offender personality traits.
The Fishbone Model developed by Kaoru Ishikawa visually maps potential causes of a problem across categories such as people, process, materials, and environment, enabling systematic root cause analysis, structured thinking, and identification of contributing factors for effective problem-solving.
The Victimology Analysis Model developed by Stephen Schafer examines victim characteristics, lifestyle, and interactions to understand victim-offender relationships, identify risk factors, and provide insights that support investigative direction, crime reconstruction, and prevention strategies.
The Deductive Profiling Model developed by Brent E. Turvey relies on case-specific physical and behavioral evidence to infer offender characteristics through logical reasoning, emphasizing objectivity, reconstruction of events, and avoidance of generalized assumptions in criminal profiling.
The Behavioral Evidence Analysis developed by Brent E. Turvey applies deductive reasoning to physical and behavioral evidence, focusing on case-specific facts to reconstruct events, determine offender characteristics, and support objective, evidence-based investigative conclusions.
The Major Incident Room Model used by UK Police provides a structured framework for managing serious investigations, integrating HOLMES systems, information flow, task allocation, and documentation to ensure coordination, accountability, and efficient handling of major or complex cases.
The Incident Command System developed by Federal Emergency Management Agency and U.S. fire services provides a standardized, scalable structure for command, control, and coordination during incidents, enabling effective resource management, clear communication, and unified response across multiple agencies and jurisdictions.
The Case Management Model influenced by UK Policing Major Incident Room structures the systematic handling of investigations through information management, task allocation, documentation, and review processes, ensuring accountability, coordination, and efficient progression of complex cases from initiation to resolution.
The National Decision Model developed by the College of Policing provides a structured approach to decision-making, integrating information, risk assessment, powers, and ethical considerations to guide consistent, accountable, and proportionate actions in dynamic policing and investigative situations.
The Timeline Analysis Model influenced by forensic investigation practices organizes events chronologically to reconstruct incidents, identify gaps, detect inconsistencies, and establish sequences of actions, enabling investigators to understand case progression, corroborate evidence, and support accurate investigative conclusions.
The Link Analysis Model influenced by Anacapa Sciences and IBM i2 visualizes relationships between people, events, and entities, enabling investigators to identify networks, patterns, and hidden connections, supporting intelligence-led investigations and strategic decision-making.
The Problem-Oriented Policing Model developed by Herman Goldstein focuses on identifying underlying crime problems, analyzing root causes, and implementing tailored responses using the SARA process, enabling sustainable crime reduction through proactive, analytical, and community-focused policing strategies.
The Intelligence-Led Policing Model developed by Jerry Ratcliffe focuses on using data analysis, intelligence gathering, and risk assessment to guide proactive policing strategies, prioritize resources, and target high-risk offenders, locations, and criminal networks for effective crime prevention and control.
The Crime Scene Analysis Model influenced by the FBI Behavioral Science Unit examines crime scene evidence, offender behavior, and modus operandi to infer psychological traits, motivations, and patterns, supporting offender profiling, investigative direction, and linkage of related crimes.
The Investigative Psychology Model developed by David Canter applies psychological principles to analyze criminal behavior patterns, linking actions, locations, and offender characteristics to support profiling, investigative decision-making, and the systematic understanding of criminal conduct.
The Statement Validity Assessment developed by Günter Köhnken evaluates the truthfulness of statements using criteria-based content analysis, reality monitoring, and validity checks, helping investigators distinguish genuine accounts from fabricated ones through systematic, evidence-based assessment methods.
The Wicklander-Zulawski Method developed by Douglas E. Wicklander and David E. Zulawski promotes rapport-based, non-accusatory interviewing, leveraging behavioral cues and strategic persuasion to obtain reliable information while minimizing resistance, coercion, and risks of false confessions.
The Strategic Use of Evidence Model developed by Pär Anders Granhag and Leif A. Strömwall emphasizes withholding and gradually disclosing evidence to elicit inconsistencies, enhance deception detection, and improve the accuracy of suspect interviews through strategic questioning.
The Forensic Statement Analysis developed by Avinoam Sapir examines linguistic patterns, word choice, and statement structure to assess credibility, identify deception indicators, and uncover concealed information, supporting investigators in evaluating truthfulness and guiding follow-up questioning strategies.
The Conversation Management Model developed by Eric Shepherd focuses on structured, ethical dialogue through rapport-building, active listening, and strategic questioning, enabling investigators to gather reliable information while maintaining professionalism, transparency, and cooperation during investigative interviews.
The Cognitive Interview Model developed by Ronald Fisher and Edward Geiselman enhances witness memory recall through context reinstatement, varied retrieval techniques, and open-ended questioning, improving accuracy, detail, and completeness of investigative information without leading or coercion.
This article explains the PEACE Model as a structured and ethical investigative interviewing framework. It covers the model’s background, five stages, practical application, strengths, limitations, and relevance in modern criminal, workplace, compliance, and internal investigations.
