Criminal defense work runs on documents. Police reports, witness statements, forensic results, body camera footage, phone records, jail calls. Every case comes with its own pile, and every item in that pile has the potential to contain the detail that changes your defense strategy. The problem is not a lack of documents. It is making sure you have reviewed all of them thoroughly enough that nothing important gets missed.
This checklist is designed as a practical tool for criminal defense attorneys and their teams. Use it as a guide when you open a new case file, and come back to it as additional discovery arrives throughout the case.
Police Reports and Supplemental Reports
- Read the initial incident report in full. Note the reporting officer, date, time, and location
- Check for supplemental reports. Many cases have follow-up reports filed days or weeks after the initial report
- Identify every officer mentioned by name and badge number
- Note the stated basis for the stop, detention, or arrest
- Compare the narrative against the charges. Does the report actually support every element of the offense?
- Look for vague or conclusory language ("appeared intoxicated," "acted suspiciously") and note it for potential cross-examination
- Check whether the report references other documents or evidence that should be in discovery but is not
Witness Statements
- List every witness mentioned anywhere in the case file, not just those who gave formal statements
- For each witness with a statement, note the date, time, and method (written, recorded, transcribed)
- Compare each witness's account with the police report narrative. Where do they agree? Where do they differ?
- Look for witnesses who may have been present but were not interviewed
- Check whether witnesses were interviewed separately or together. Joint interviews can raise reliability concerns
- Note any indication that a witness was promised anything in exchange for cooperation
Audio and Video Evidence
- Inventory all audio and video referenced in the case file. This includes body camera footage, dash cam, surveillance video, 911 calls, and recorded interviews
- Confirm that you have received copies of all referenced recordings, not just transcripts
- Check body camera timestamps against the times stated in the police report. Gaps between the officer's stated arrival and the start of the recording are worth investigating
- Note any points where recordings were paused, stopped, or where footage appears to be missing
- For recorded interviews, verify that the transcript accurately reflects what was said on the recording
- Listen for background statements, conversations between officers, or other audio that may not appear in written reports
Forensic and Lab Reports
- Identify every piece of physical evidence that was collected and note the chain of custody for each item
- Review lab reports for the analyst's qualifications, methodology, and conclusions
- Check dates: when was the evidence collected, when was it submitted to the lab, and when was it tested?
- For drug cases, confirm the substance identification method and whether a confirmatory test was performed
- For DNA cases, review the statistical analysis and the number of contributors
- Note whether calibration records for testing equipment are included in discovery
- Identify the specific analyst who performed the test for potential Confrontation Clause issues
Electronic Records
- Review phone records for call logs, text messages, and location data
- Check whether the records were obtained by warrant or consent, and review the legal basis
- For cell site location information (CSLI), evaluate the precision of the location data
- Review social media evidence for authenticity and chain of custody
- For computer forensics, check whether the forensic image was properly created and verified
- Note any privacy or Fourth Amendment issues with how electronic evidence was obtained
Prior Record and Background
- Review your client's criminal history for accuracy. Errors in criminal history reports are common
- Check whether prior convictions could affect sentencing exposure or admissibility at trial
- For cases involving law enforcement credibility, check for Brady material and Giglio disclosures
- Review any available disciplinary records for officers involved in the case
Legal Filings and Court Documents
- Review the complaint, information, or indictment for specificity and accuracy
- Check all search warrant applications and warrants for probable cause sufficiency
- Review any court orders related to bail, protective orders, or discovery
- Note all scheduling orders and deadlines
- Check for any co-defendant cases and related filings
Discovery Completeness Check
- Compare your discovery production against the prosecution's discovery index (if provided)
- Cross-reference every document mentioned in police reports against what you actually received
- Verify that all audio and video referenced in any document has been produced
- Check whether exculpatory material (Brady/Giglio) has been disclosed
- Prepare a list of missing items for a supplemental discovery request
Using This Checklist Effectively
This checklist works best when one person owns it for each case. That person, usually a paralegal or junior associate, works through each section as materials come in and updates the checklist as additional discovery is produced. The checklist becomes a living record of what has been reviewed, what is missing, and what needs follow-up.
For firms that handle a high volume of cases, working through this checklist manually for every case is time-consuming. AI-powered document analysis tools can handle much of the initial extraction and categorization, identifying the key facts, parties, and dates from police reports and other discovery materials so your team can focus on the analysis rather than the data entry.
Case Clarity AI is built to support exactly this kind of structured document review. It reads police reports, transcripts, and case files, then produces organized outputs that map directly to the categories in this checklist. If your firm handles criminal defense cases regularly, it may be worth exploring how the tool fits into your review process.