What you provide
The witness’s statements, declarations or testimony and the documents against which to compare them. Identify the witness and whose witness they are.
Solutions
Prepare witnesses
Move from a conflict in the file to the question it raises. Compare statements, prepare an examination and review a practice answer against the source.
Choose the tool
Start with the document and the decision.
Impeachment mapBefore a deposition, interview or hearing, and when a new statement arrives.
What comes back
Conflicting passages with exact source lines, why the difference matters and questions the other side may ask. Preparation notes remain tied to the record.
A difference in dates may be a drafting error, a memory issue or a disputed fact. The map puts the two passages together so the lawyer can investigate the cause. It does not decide that the witness was dishonest or replace the lawyer’s assessment of the testimony.
Practice context: Civil litigation →Criminal and enforcement →
Cross-examination listWhen planning an examination and after comparing witness statements with the file.
What you provide
The witness’s account and the relevant exhibits, correspondence and prior statements. Name the witness and the purpose of the preparation.
What comes back
Questions tied to quotations and document lines, organized around the points the file supports. The lawyer can examine the passage behind a proposed question.
Use the list to move from a general concern to a question about an actual statement. A question based on the delivery date should show where that date appears. An absent source or incomplete account is a reason to obtain more material before relying on the question.
Practice context: Civil litigation →Criminal and enforcement →
Practice roomAfter identifying the issues, during preparation for testimony.
What you provide
Use the examination questions and matter documents, then enter the witness’s practice answer to one question at a time.
What comes back
A comparison of that answer with the file and the passages relevant to a conflict or omission. The next question follows the individual answer being reviewed.
The purpose is to expose differences between a proposed answer and the documentary account. The lawyer can pause, examine the source and discuss what the witness actually remembers. It is not a script for changing testimony to match a preferred position.
Practice context: Civil litigation →Criminal and enforcement →
Government interview prepBefore a contemplated interview with an agency, investigator or prosecutor.
What you provide
The client’s account and the statements, correspondence and other records that an investigator could ask about.
What comes back
Likely questions linked to the file, with the false-statement statute and Fifth Amendment text shown alongside the preparation.
A question about the timing of an interview should point to the account or record that raised it. Keep the distinction between document preparation and the lawyer’s advice about whether to participate, what rights apply and how to respond in the actual investigation.
Practice context: Criminal and enforcement →
A result, step by step / Invented sample documents
The witness’s date and the agreement’s date.
1. Identify the statement
The declaration says delivery was required by March 3. The agreement states March 10. Both documents concern the same invented supply dispute.
2. Read the source
Supply agreement, line 4
“Seller shall deliver 5,000 industrial valves to Buyer's facility on or before March 10, 2026.”
The Impeachment map places the conflicting account beside this passage and lists questions the other side could ask.
3. Prepare and follow through
Investigate why the witness gave the earlier date. A document conflict does not decide what the witness remembers. Use the handled box after the lawyer has addressed the issue, then review a practice answer against the source.
Where this fits in a matter
Use the result at the decision point.
Impeachment map
Before a deposition, interview or hearing, and when a new statement arrives.
Cross-examination list
When planning an examination and after comparing witness statements with the file.
Practice room
After identifying the issues, during preparation for testimony.
Government interview prep
Before a contemplated interview with an agency, investigator or prosecutor.
Questions
Using this review in your matter.
Which statements should I include?
Include the witness’s statement and the earlier accounts or records that bear on it. Identify the witness being prepared. The comparison can only find conflicts in the material supplied.
Does a practice score establish that an answer is true?
No. Practice room compares the answer with the available file. The lawyer and witness must resolve factual discrepancies rather than rehearse an unsupported account.
How is government interview preparation different?
It organizes likely interview questions and supporting record points for the selected person. The available legal text includes selected federal false-statement and constitutional material. Counsel separately determines rights, obligations and whether to participate.
Cortega Legal
Review an invented matter with us.
Discuss the documents, the work and the practice’s deployment.