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AI prompts for criminal defense lawyers

Testing the State's evidence, sequencing the timeline precisely, and surfacing reliability and disclosure issues. Every prompt on this page carries that emphasis. Pick a workflow and add only the details the assignment needs, using neutral labels where possible.

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A complete example prompt

The Criminal defense lens adds this practice context to every template: This work product supports the defense of the accused: testing the reliability and completeness of the State's evidence and protecting the client's rights.

Here is one complete example: the “Map every State witness against their priors” workflow with mixed / full case record as the source. Run it on your own file in Ask your files, or copy it into an AI tool your firm approves.

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Map every State witness against their priors · Mixed / full case record

Synthetic example: Names, dates, organizations, and matter details are fictional placeholders, not a real case record.

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CONTEXT:
You are a litigation support analyst assisting criminal defense counsel in an aggravated battery prosecution matter. The attached materials are: (1) the certified deposition transcript of Jordan Lee, a State eyewitness, and (2) the witness's prior statements: the police interview, sworn statement, and deposition transcript. The issues that matter are: lighting conditions; distance; sequence of events; identification. This work product supports the defense of the accused: testing the reliability and completeness of the State's evidence and protecting the client's rights.

INSTRUCTIONS:
Compare the deposition testimony against each prior statement, fact by fact. Identify every place the accounts diverge and classify each divergence as exactly one of:
- DIRECT CONTRADICTION — the statements cannot both be true.
- MATERIAL OMISSION — a fact asserted in one account is absent from the other where it would naturally appear.
- SHIFTED DETAIL — timing, sequence, distance, speed, or identity changed between accounts.
Then, for each DIRECT CONTRADICTION and SHIFTED DETAIL, draft a two-step cross-examination sequence: first a lock-in question committing the witness to the deposition testimony, then a confrontation question presenting the prior statement, each with its cite.

In this engagement, additionally: Compare every State witness account against every other account and against the physical evidence; small shifts in distance, lighting, timing, and sequence matter and must be captured, not smoothed over.

TEMPLATE — format your output exactly as follows:
## Divergence map
| # | Topic | Deposition account (verbatim + cite) | Prior statement account (verbatim + source + cite) | Classification |
|---|---|---|---|---|
## Cross-examination sequences
For each qualifying divergence:
**Divergence #__ — [topic]**
- Lock-in: "[question]" (commits witness to: [depo cite])
- Confront: "[question]" (prior statement: [source + cite])
## Consistencies that hurt us
Briefly list facts the witness has stated consistently across all accounts, with cites — these are the points cross should avoid.

EVIDENCE REQUIREMENTS:
For every finding, identify the source document by name and cite page:line for transcripts, timestamps for audio/video, and Bates/page for documents. Every divergence requires two citations — one per source — and verbatim language from both. If a prior statement referenced in the materials list was not actually provided, say so explicitly rather than working from assumptions. Do not classify a divergence as a DIRECT CONTRADICTION unless the verbatim language supports it; when in doubt, classify down to SHIFTED DETAIL and flag it under "Borderline — attorney review."

Unless a section above specifies its own marker, write "not found in the record" wherever the provided record does not support a requested finding. Do not infer or fill gaps from outside knowledge.
The scope is limited to the requested task, stated issues, and provided record. Do not introduce outside subjects or sources.
A human reviewer must verify every material statement and citation against the source record before relying on or sharing the output.

Every template in the library assembles like this with the Criminal defense lens: open the builder and add only the assignment details needed, using neutral labels where possible, or read the Attorney's Guide to AI Prompting for the method behind it.

What this lens changes in each task

Extract from the record
Prioritize inconsistencies among State witnesses, statements bearing on identification reliability and observation conditions, language suggesting suggestive procedures, and references to evidence or recordings not found in the production.
Build a chronology
Build the timeline to the minute wherever the record allows — who knew what when, when warnings were given, when searches and seizures occurred. Precise sequence is frequently the entire defense.
Find contradictions
Compare every State witness account against every other account and against the physical evidence; small shifts in distance, lighting, timing, and sequence matter and must be captured, not smoothed over.
Summarize the record
Organize by element of each charged offense, noting which elements rest on a single witness, where corroboration is absent, and where the record is silent.
Draft from the record
Build examination sequences that commit witnesses to specifics before any confrontation, and never embed a factual premise the discovery does not contain.
Interrogate the file
In every answer, note whether the supporting material came from the State's production and flag anything referenced in the record that does not appear to have been produced.

Common questions

How can criminal defense lawyers use AI to review discovery?

Criminal defense lawyers can use AI to question the State’s discovery production with citations: which witness said what, when, and where it appears. A good prompt also flags anything the record mentions that does not appear to have been produced. Defense counsel verifies every cited page and decides what to raise with the prosecutor or the court.

Can AI compare a witness’s police statement with their deposition?

Yes. Give the AI the police report or recorded statement and the deposition, and ask for every change in distance, lighting, timing, and sequence with a citation to each source. In criminal defense work, counsel reads both passages in full before using a divergence to commit the witness or to impeach at trial.

Is it safe to use AI with confidential criminal case files?

Use only tools your office has approved for confidential material. CasePrompts reads files you open in Ask your files in your browser and does not upload them. Criminal defense lawyers should also check their jurisdiction’s ethics guidance, such as ABA Formal Opinion 512, before sending any client material to a cloud AI service.

Worked examples for this practice

Each pairs one template with this practice’s emphasis, end to end.

More template guides

Read the general guide for each workflow below. To apply the Criminal defense context to your own facts, use the builder actions above.