
DUI Discovery Analysis & Suppression Motion Strategist
Analyze DUI discovery for suppression motion opportunities
What You Can Do
This skill systematically analyzes DUI police reports and discovery materials to identify Fourth Amendment violations, Miranda rights issues, and procedural errors that support suppression motions. You submit arrest reports, interrogation transcripts, and test records—the skill evaluates traffic stops, searches, interrogations, and evidence collection procedures to surface constitutional challenges. You receive a prioritized analysis of viable suppression motion opportunities ranked by legal strength and likelihood of success.
Features
Evaluates whether the initial stop had proper reasonable suspicion or probable cause based on officer observations and vehicle conduct
Identifies improper interrogation timing, missing rights warnings, questionable waiver validity, and custodial questioning issues
Analyzes vehicle searches, sobriety tests, pat-downs, and evidence collection procedures for constitutional compliance and consent validity
Examines breath/blood test protocols, calibration records, operator certification, chain of custody, and technical maintenance defects
Reviews FST administration against NHTSA standards and identifies procedural failures, lighting issues, and officer training gaps
Flags contradictions, timeline gaps, and discrepancies in officer statements that undermine credibility and support credibility challenges
Prioritizes violations by motion likelihood, legal precedent strength, jurisdiction case law, and impact on case outcome
Highlights missing dashcam footage, audio recordings, calibration records, maintenance logs, and other evidence that must be requested
Example Output
Fourth Amendment Violation: Unlawful Traffic Stop
Issue: Traffic stop lacked reasonable suspicion. Facts: Officer stopped vehicle for "swerving between lanes" but dashcam shows straight driving for 0.3 miles before stop. Legal Standard: Reasonable suspicion requires specific, articulable facts (Whren v. United States, 517 U.S. 806). Suppression Motion: YES — Strong. Motion to suppress all evidence derived from unlawful stop (fruit of the poisonous tree). Impact: If granted, eliminates field sobriety tests, breath test, and statements made after stop.
Fifth Amendment Violation: Interrogation Without Valid Waiver
Issue: Miranda waiver signed after 8-hour hold without sleep or counsel consultation. Facts: Defendant stated "I want to think about this" (ambiguous invocation); officer continued questioning 45 minutes later without re-warning. Legal Standard: Valid waiver requires knowing, voluntary, and intelligent relinquishment (Miranda v. Arizona, 384 U.S. 436). Suppression Motion: YES — Moderate strength. Motion to suppress statements made after ambiguous invocation and improper re-engagement. Impact: Excludes incriminating statements but breath test results may remain admissible.
Discovery Gap: Missing Officer Training Records
Gap: No FST training certification or validation testing for administering officer. Request: FST certification, annual proficiency testing, training dates for this officer. Motion Opportunity: Foundation challenge to FST evidence; expert testimony weakness without training documentation.
What's Included
- Constitutional Violation Framework: Structured analysis template organized by Fourth Amendment (stops, searches, seizures), Fifth Amendment (Miranda, interrogation), and Sixth Amendment (right to counsel) issues
- Suppression Motion Opportunity Checklist: Point-by-point evaluation guide with legal standards, landmark case citations, and state-specific DUI precedent for your jurisdiction
- Police Procedure Validator: Reference standards for traffic stops, vehicle searches, DUI investigations, field sobriety testing, and breath/blood testing compliance
- Discovery Assessment Worksheet: Template for organizing police reports, identifying missing evidence, tracking requested documents, and flagging inconsistencies
- Motion Strategy Guide: Decision tree for prioritizing which violations to challenge first, assessing motion strength, and sequencing suppression motions strategically
Who It's For
- Criminal Defense Attorneys
- DUI Specialists and Board-Certified DUI Practitioners
- Defense Paralegals and Case Managers
- Public Defenders and Indigent Defense Counsel
- Law Students and Legal Interns in Criminal Practice
Best For
- Fourth Amendment violation analysis in DUI cases
- Miranda rights and interrogation assessment
- Suppression motion preparation and strategy
- Discovery evaluation and gap identification
- Pre-trial motion drafting and argument development







