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AI Tools for Criminal Defense Attorneys
AI tools that help criminal defense attorneys research case law, analyze police records, investigate client backgrounds, and build compelling defense strategies.
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CaseCourtYear
Riley v. CaliforniaSCOTUS2014
Carpenter v. USSCOTUS2018
US v. JonesSCOTUS2012
State v. Rodriguez5th Cir.2019
47 relevant cases found · sorted by relevance
Case law research and precedent analysis
Search relevant case law by jurisdiction and legal issue. Build persuasive arguments by citing precedents that support your defense strategy and identify weaknesses in the prosecution case.
Find cases in the Fifth Circuit involving custodial interrogation without Miranda warnings and suppression of confessions.
Found 47 relevant cases. Top precedent: State v. Rodriguez (2019) established that failure to fully Mirandize requires suppression of all post-warning statements. 23 cases involved similar fact patterns.
ToolRouter search_cases
CaseYearIssue
State v. Rodriguez2019Incomplete Miranda — post-warning statements
US v. Herrera-Vasquez2021Language barrier — Miranda not understood
US v. Montoya2020Delay in Miranda — 38 minutes post-arrest
US v. Castillo-Garcia2022Continuation after counsel request
47 cases found · 23 involve similar fact patterns · Rodriguez controlling
Witness background investigation
Quickly investigate witness credibility by searching criminal records, civil litigation history, and public records. Identify prior convictions, bias, or motive to lie that weakens prosecution witnesses.
Get background information on the key prosecution witness including prior criminal record, civil suits, and any restraining orders.
Found: 2 prior drug convictions (2010, 2015), civil harassment suit filed by ex-partner (2018), and active protective order from 2021. Strong grounds to impeach credibility.
ToolRouter deep_search
2010 Conviction
CDS possession — misdemeanor — impeachment basis (FRE 609 eligible)
2015 Conviction
Drug distribution — felony — strong impeachment grounds under FRE 609
2018 Civil Suit
Harassment suit by ex-partner — bias / motive to fabricate argument
2021 Protective Order
Active — issued against witness by former associate — credibility issue
Assessment
Strong multi-ground impeachment — prior felony + protective order history
Police record and evidence analysis
Thoroughly analyze police reports, arrest documentation, and evidence logs for procedural violations, inconsistencies, and missing information. Document gaps in the investigation.
Review this police report and identify any Miranda violations, chain of custody issues, or evidentiary gaps.
Identified: Officers did not read Miranda until 47 minutes after arrest; 3-hour gap in evidence log (9pm-12am); no video of interrogation per department policy. Strong suppression arguments.
ToolRouter research
Miranda Delay
47 minutes elapsed before Miranda — involuntariness argument viable
Evidence Log Gap
3-hour gap (9pm–12am) — chain of custody integrity challenge
No Interrogation Video
Department policy requires recording — non-compliance documented
Counsel Request Ignored
Report shows client requested attorney — questioning continued in violation
Recommended Motion
Motion to suppress — Miranda + counsel violations — strong basis
Case timeline and narrative development
Create detailed timelines and visual diagrams of events to organize complex factual scenarios, identify prosecution inconsistencies, and tell a compelling defense narrative to the jury.
Create a detailed timeline diagram showing the timeline from the alleged crime, arrest, interrogation, and bail hearing with key evidentiary moments.
Generated timeline showing 4-hour gap in prosecution timeline, client statement at 9:15pm contradicted by prosecution witness timestamp of 8:45pm. Exonerating timeline created.
ToolRouter create_diagram
8:45pm (Prosecution)
Prosecution witness claims: saw client at scene (8:45pm)
9:15pm (Defense)
Client alibi: confirmed at restaurant 4 miles away (receipt timestamped)
9:42pm
Client arrested — Miranda delayed 47 minutes
10:29pm
Client requests attorney — interrogation continues in violation
Next AM
Bail hearing — $50,000 set
Jury presentation materials
Generate clear, compelling charts and visuals that summarize evidence, witness credibility issues, and defense arguments for jury presentation and opening/closing statements.
Create a chart showing all witness statements that contradict the prosecution timeline and key dates.
Generated comparison chart showing 7 witness statements contradicting prosecution timeline. Visual clearly shows alibi witnesses, with dates and times highlighted.
ToolRouter create_chart
Stated event time (9pm = 21.0)
Ready-to-use prompts
Case law precedents
Search case law in my state for precedents involving [specific legal issue]. Focus on cases where the defendant's motion was granted or conviction was overturned.
Witness background check
Research the background of [witness name] including criminal record, civil litigation, prior restraining orders, and any history of credibility issues.
Police report analysis
Analyze this arrest report for Miranda violations, chain of custody gaps, procedural errors, and any statements made without counsel present.
Create case timeline
Create a detailed timeline diagram showing the alleged crime, arrest, interrogation, key witness statements, and court dates with contradictions highlighted.
Evidence summary chart
Generate a comparison chart showing all prosecution witnesses and their key statements, highlighting contradictions and credibility issues.
Jury argument outline
Draft an opening statement outline for [charge] emphasizing reasonable doubt, focusing on [key weak point in prosecution case].
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Legal ResearchCase law, statutes, regulations & legislation worldwide
165+ tools.
One conversation.
Everything criminal defense attorneys need from AI, connected to the assistant you already use. No extra apps, no switching tabs.
Case preparation and research
Comprehensively research the case including applicable law, witness backgrounds, and evidence gaps before trial preparation begins.
Jury presentation preparation
Develop visual materials and narratives that clearly present the defense case to the jury.
Frequently Asked Questions
Does the legal research tool cover my jurisdiction?
Legal Research covers 15+ jurisdictions including US federal courts, all state courts, UK, Canada, Germany, India, and others. Check the tool documentation for your specific jurisdiction.
Can I rely on the case law results for trial?
Case law results should always be verified through your own Westlaw/Lexis research before citation in court. The tool provides fast initial research to identify promising avenues, but final citation verification is your responsibility.
What witness information is available through people search?
People Search accesses public records including criminal records, civil litigation, business affiliations, and basic biographical data. Private information is never included. Coverage varies by jurisdiction.
Can I use the generated charts and timelines in court?
Generated charts and timelines are excellent trial presentation materials. However, you must ensure all facts are accurate and supported by evidence. The tool generates visuals, but you are responsible for accuracy and admissibility.
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