The ACCESS Model: A Strategic Framework for Ethical Investigative Interviewing
An investigative problem-solving framework attributed to Eric Shepherd and colleagues (Shepherd & Mortimer, 1999; described more fully in Ede & Shepherd, Active Defence, 2000), developed alongside Shepherd's Conversation Management approach. ASC integrates ACCESS; it did not create it.
A credited tool in the Route direction for connecting each interview to the investigation.
From Conversation Management to a structured investigative framework
Conversation Management emerged as a major influence in the evolution of modern ethical interviewing practices and helped shape investigative interviewing philosophies later reflected in the PEACE framework developed in England and Wales. Rather than relying on coercion, intimidation, or confession-driven interrogation tactics, the ACCESS Model emphasizes strategic communication, information development, attention to communication conditions, and professional decision-making.
At its core, the model recognizes a fundamental investigative principle:
The objective of an interview is not simply to obtain admissions. The objective is to facilitate the maximum disclosure of reliable information.
ASC’s summary of the model’s aimThe ACCESS framework provides investigators with a structured process for managing information, communication, evidence, and investigative decision-making throughout an inquiry.
A · C · C · E · S · S
Six stages: Assess, Collect, Collate, Evaluate, Survey, Summarize. Each is a discipline, not a checkbox. The investigator moves between them as information surfaces, returning to earlier stages whenever new facts demand it.
Hover over or select any stage to see the full breakdown
Evaluate the known facts, environment, evidence, communication dynamics, investigative priorities, risks, communication conditions that may affect the quality of information, and credibility factors.
Assess
The investigative process begins with assessment. Investigators must evaluate:
- the known facts
- the environment
- available evidence
- communication dynamics
- investigative priorities
- risks and vulnerabilities
- communication conditions that may affect the quality of information
- credibility factors
Assessment establishes the foundation for every investigative decision that follows. Within Conversation Management, this phase also includes evaluating how communication conditions may impact the quality of information obtained during interviews.
Gather information, evidence, observations, statements, and intelligence relevant to the inquiry, with thoroughness and accuracy and without premature conclusions.
Collect
The investigator gathers information, evidence, observations, statements, and intelligence relevant to the inquiry. This includes:
- witness accounts
- observations of the interview conditions
- physical evidence
- documentary evidence
- digital evidence
- contextual information
- timelines
- investigative leads
The collection phase emphasizes thoroughness and accuracy while avoiding premature conclusions. Conversation Management strongly reinforces the importance of strategic listening and purposeful information gathering during this stage.
Organize and structure what has been gathered. Collation transforms raw information into usable investigative understanding by identifying patterns, comparing statements, and connecting evidence to investigative objectives.
Collate
Once information is gathered, it must be organized and structured. Collation involves:
- organizing facts
- identifying patterns
- comparing statements
- establishing timelines
- identifying gaps
- evaluating consistencies and inconsistencies
- connecting evidence to investigative objectives
This phase transforms raw information into usable investigative understanding. The model recognizes that information alone has limited value unless it is properly organized and interpreted within the broader investigative context.
Critically assess reliability, credibility, evidentiary value, corroboration, communication conditions that may affect the quality of information, investigative significance, legal implications, and alternative explanations.
Evaluate
Evaluation is an ongoing process throughout the investigation. Investigators critically assess:
- reliability
- credibility
- evidentiary value
- corroboration
- communication conditions that may affect the quality of information
- investigative significance
- legal implications
- alternative explanations
The ACCESS Model discourages assumption-based thinking and instead promotes disciplined analytical reasoning. Conversation Management reinforces that evaluation should focus on the totality of information rather than simplistic behavioral myths or isolated observations.
Review the broader investigative landscape and determine strategic direction moving forward. Reassess priorities, identify additional inquiries, consider alternative hypotheses, and adapt as new information emerges.
Survey
Survey refers to reviewing the broader investigative landscape and determining strategic direction moving forward. This includes:
- reassessing investigative priorities
- identifying additional inquiries
- determining unresolved issues
- evaluating operational strategy
- considering alternative hypotheses
- reviewing communication effectiveness
- adapting investigative plans as new information emerges
The survey phase reflects the model's emphasis on flexibility and adaptive thinking rather than rigid investigative processes.
Clearly articulate findings, decisions, evidence, and investigative conclusions through reporting, documentation, and presentation. Investigative work ultimately depends on the investigator's ability to communicate clearly, accurately, and professionally.
Summarize
The final phase involves clearly articulating findings, decisions, evidence, and investigative conclusions. Summarization includes:
- investigative reporting
- documentation
- communication of findings
- presentation of evidence
- briefing decision-makers
- preparing judicial or organizational materials
- ensuring clarity and defensibility
This phase recognizes that investigative work ultimately depends upon the investigator's ability to communicate information clearly, accurately, and professionally.
A shared philosophy of ethical, strategic interviewing
The ACCESS Model and Conversation Management were developed within the same professional philosophy advanced by Eric Shepherd.
Conversation Management emphasized:
- ethical interviewing
- strategic communication
- active listening
- rapport-based engagement
- reflective practice
- awareness of communication conditions
- purposeful conversation
ACCESS provides the operational structure surrounding those principles. Together, they helped move investigative interviewing away from confrontation-based tactics, confession-focused models, and rigid interrogation scripts, and toward information gathering, communication management, investigative flexibility, professional rapport, analytical thinking, and ethical interviewing practices.
The model recognizes that communication is not separate from investigation.
Communication is the investigation.
The investigative framework, with the interview standard inside it
ACCESS connects each interview to the whole investigation. Teach To Talk supplies the interview standard inside it, so that what is collected in the room arrives with its source, certainty, and limits clear enough to collate and evaluate.
Teach To Talk shares several principles reflected within ACCESS and Conversation Management:
- communication influences outcomes
- people respond differently under stress
- rigid scripts fail in dynamic environments
- listening is operationally critical
- rapport is strategic
- communication conditions affect information quality
- professionalism improves cooperation and disclosure
ACCESS is attributed to Eric Shepherd and colleagues, and its history and research support belong to its originators. ASC’s role is to integrate it, with credit, and to run the interview inside it on the Teach To Talk standard.
A credited tool in the Route direction
Inside the Adaptive Strategies Compass, ACCESS is a credited tool in the Route direction for connecting each interview to the investigation. Route answers one question: where is this conversation going? ASC teaches the Route Map, a planning format widely used by interviewers and investigators, as the planning tool of the direction; ACCESS and PEACE’s planning and preparation stage are credited tools beside it.
The interviewer turns to Route before the interview begins, and again whenever the thread is lost, a new name, allegation, or piece of information changes the picture, too many topics are open at once, the next step is unclear, or the person’s status changes. ACCESS recognizes the same reality: investigations are dynamic, and information changes as the inquiry develops.
When the interviewer turns to Route, the work is to:
- re-check the objective: what does this interview need to establish?
- mark where you are and what is still open
- choose the next branch from the plan, and tell the person about the transition
- connect the interview to the case: what needs checking outside the room, and who should be interviewed next and in what order
- if the person’s legal status changes, stop, meet the new requirements, and explain the process again
This directly mirrors the Survey and Evaluate phases of ACCESS, where investigators must continually reassess:
- information quality
- communication effectiveness
- investigative direction
- strategic options
- operational priorities
Interview order, contamination prevention, and status changes, such as a witness who becomes a suspect, are Route decisions. Route is not a script or a prediction of guilt: branches are triggered by what the person says, never by demeanor.
Find the objective, then the next turn.
Better communication. Better decisions.
The ACCESS Model remains influential because it reinforces a critical reality often overlooked in high-pressure environments:
Better communication produces better information.
Better information produces better decisions.
The model teaches professionals to think strategically rather than mechanically. It encourages:
- disciplined assessment
- ethical communication
- reflective decision-making
- investigative flexibility
- purposeful listening
- analytical reasoning
- professional adaptability
Those principles remain foundational not only in investigative interviewing, but in leadership, organizational communication, workplace investigations, and any environment where communication directly impacts outcomes.
Train your team in strategic, ethical interviewing
The ACCESS Model, credited to Eric Shepherd and colleagues, is taught across ASC's investigative interviewing programs, where the six stages become disciplined practice rather than theory.