When an answer is imprecise, contradictory or unhelpful, attention usually turns immediately to the person answering. Yet before interpreting that response, another variable deserves examination: how it was obtained.

An interview is not a neutral container from which information is simply extracted. It is an interaction. The wording, order and openness of questions, interruptions and information introduced by the interviewer can shape what information is expressed and how it is communicated.

This does not mean that a question necessarily determines an answer, or that an imperfect interview invalidates the information obtained. It means something more cautious and more useful: the quality of the elicitation process forms part of the context in which its outcome should be evaluated.

Asking more does not always mean obtaining more

When an account is incomplete, it is understandable to try to fill the gaps through increasingly specific questions. The difficulty is that a closed or highly directed question narrows the space for an answer and may introduce elements that did not originate spontaneously from the interviewee.

Research on investigative interviewing supports, particularly in the early stages of retrieval, the use of open invitations that allow a fuller narrative before moving toward more specific questions. Memory-based interviewing approaches also emphasize adapting the interview to how a person retrieves and communicates information rather than prematurely imposing the interviewer’s own mental structure.

An answer cannot be fully analyzed without considering the question that produced it.

A question may contain more information than it appears to

Some questions contain assumptions. Others offer alternatives that narrow the possible universe of answers. Others introduce details the person had not previously mentioned.

In those cases, the interviewer is no longer simply requesting information and begins, to some degree, to provide it. Research on memory and interviewing has shown that suggestive questions and post-event information can influence memory and communicated content.

It is therefore relevant to distinguish between information offered spontaneously and information that appears after more directive intervention. Not in order to automatically discard the latter, but to understand more clearly how it became part of the statement.

The problem with searching too early for a particular answer

The interviewer often knows more about the matter than the person giving the account: they have read the file, hold hypotheses and know which points require clarification. That advantage is necessary for good preparation, but it can also become a source of bias.

When one hypothesis dominates the conversation too early, questions may become oriented primarily toward confirming it, while unexpected or contradictory information receives less attention.

An effective interview does not require abandoning strategy. It requires preventing strategy from determining in advance what we are prepared to hear.

Preparation is not scripting

Preparing someone to give a statement involves an important distinction. Helping a person understand the setting, listen carefully, answer what is actually asked, mentally organize relevant information or manage emotional factors that interfere with communication is not the same as providing them with a narrative.

The boundary matters. The objective of rigorous preparation is not to manufacture a more persuasive version, but to create better conditions for the person’s own information to be retrieved and communicated clearly, without adding content that does not belong to them.

Preparing communication does not mean constructing content.

What does this change for legal strategy?

Well before an interview or examination, it is possible to decide what information needs to be obtained, which points require testing and which sequence may allow the process to move forward without unnecessarily contaminating the account.

After a statement, reviewing the questions together with the answers may reveal something the content alone does not show: where a detail appeared for the first time, what information was introduced by the interviewer, what point was never actually answered, or what conclusion may be attributed to the person even though it was contained in the question itself.

This makes question formulation more than a matter of style. It can become a matter of information quality.

Before interpreting an answer, examine how it was obtained.

A good strategy is not only about knowing what we want to find out. It also requires thinking carefully about how we intend to find it out.