Records tell you what happened. People tell you why, who knew, and what is missing from the records. A forensic accountant who can read a ledger but cannot get a nervous bookkeeper to talk has only half the case. The interview is where a paper anomaly becomes an account of how the money actually moved.
The best interviews are worked out well before anyone sits down. By then the accountant has already been through the documents, knows which transactions do not add up, and knows what answer would explain them. You do not ask questions you have no way to check. You ask questions you already half know the answer to, so you can tell when the answer you get does not fit.
Order the conversation with care
Start wide and friendly. Ask people to describe their job and how a payment gets approved. This does two things. It fills in how the system is supposed to work, and it settles the person into talking freely before anything sharp comes up. A witness who is relaxed gives longer, more useful answers.
Save the pointed questions for when you have enough background to judge the reply. Open questions do more work than yes-or-no ones. Walk me through how that invoice got paid reveals far more than did you approve this invoice. The first invites a story you can test against the records. The second invites a single word.
Let silence do some work. After an answer, a short pause invites the person to keep going, and people often fill quiet with the detail they meant to leave out. Jumping in with the next question teaches them to give clipped answers, which is the opposite of what you want.
Watch for what does not fit
Deception is rarely a single tell. It shows up as inconsistency. A detail changes between the first telling and the third. An answer contradicts a document already in hand. A period the person was specific about a minute ago turns suddenly vague. The accountant listens for the seam, then comes back to it gently, from a different angle, to see whether it holds.
Body language and tone can flag a spot worth pressing, but they prove nothing on their own. Plenty of honest people are anxious in a formal interview, and some practiced liars stay perfectly calm. The reliable signal is the answer that does not match the record. That is why the document work comes first.
Keep it clean enough to use
An interview that produces a confession is worthless if the confession cannot be used. The accountant has to stay inside the rules for how the conversation is run and how any statement is recorded and preserved. A sloppy interview can taint good evidence and hand the other side an argument. In serious matters, counsel sets the boundaries before anyone sits down.
The setting matters more than people expect. A rushed exchange in a hallway produces guarded answers. A booked room, enough time, and a plain explanation of why the interview is happening produce fuller ones. None of that changes the facts of the case, but it changes how much of them you actually get to hear.
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What it means for your matter
Most engagements are not Enron. But the pattern is the same at every scale: a diverted vendor payment, a related party that shouldn't exist, revenue booked before it was earned, a reserve fund that never quite reconciles. The methods used to expose a multibillion-dollar fraud are the same methods that expose a bookkeeper skimming from a small business or a managing agent taking kickbacks from a co-op.
If something in your financial picture doesn't add up, the earlier a forensic accountant looks, the more of the trail survives. Documents get lost, memories fade, and money moves. The record is easiest to reconstruct while it is still fresh.
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