1. Review Suppression Motion Deadlines before Retrial
A DUI retrial does not automatically restart pretrial deadlines or erase earlier motion practice. The defense should identify what was litigated, what remains unresolved, and whether new facts support further motion practice. CPL §§ 255.20 and 710.40 provide the starting rules.
Check the Pretrial Motion Window
- CPL § 255.20 generally requires pretrial motions within 45 days after arraignment and before trial.
- Specified discovery or notices can extend that period to 45 days after the last qualifying service.
- CPL § 710.40 allows a later suppression motion when the defendant lacked a reasonable earlier opportunity.
The procedural history matters. A defendant should not assume that a missed issue is automatically waived or that an earlier motion can simply be filed again. Broader criminal defense review can place the issue in the context of the retrial.
Preserve the Suppression Record
- Preserve prior motion papers, hearing transcripts, exhibits, and rulings.
- Identify the evidence challenged and the grounds previously asserted.
- Document pertinent facts discovered after the earlier ruling.
CPL § 710.40 permits renewal in certain circumstances when pertinent facts could not have been discovered earlier with reasonable diligence. The existing record and timing of new facts therefore matter.
2. Recheck Discovery before the New Trial
Discovery can change as new records, witness information, or scientific material becomes available. Article 245 governs state discovery, while constitutional disclosure duties remain separate. The defense should compare earlier production with material available for retrial.
Review New and Continuing Disclosure
- Compare prior production with newly disclosed police and witness materials.
- Review records supporting breath, blood, urine, or other chemical testing.
- Track discoverable material learned about after earlier production.
CPL § 245.60 imposes a continuing duty to disclose additional discoverable material. In a DUI charges case, this may include recordings, laboratory material, testing records, and other prosecution evidence.
Respond to Late or Missing Material
- Identify the material and when disclosure occurred.
- Explain how delay affects investigation or trial preparation.
- Seek a remedy tied to the prejudice or discovery problem.
CPL § 245.80 calls for an appropriate and proportionate response to discovery non-compliance. Remedies can include further discovery, preparation time, evidentiary measures, or other court-ordered relief.
3. Prepare Expert and Prior-Act Evidence for Retrial
Expert testimony and proposed prior-act evidence can reshape a retrial. Timing should be checked against Article 245, the earlier record, and current court orders. A new trial date does not necessarily create a new statutory disclosure period.
Review Expert Disclosures
- Identify toxicology, chemical-testing, or other proposed expert testimony.
- Review disclosed qualifications, reports, and expected opinions when required.
- Check reciprocal discovery duties and current scheduling orders.
CPL § 245.20 requires specified information about prosecution experts. If that information is unavailable during initial discovery despite reasonable diligence, disclosure generally must occur as soon as practicable and, absent a protective order, no later than 60 days before the first scheduled trial date. Focused blood alcohol content review can help organize the supporting records.
Review Proposed Prior Misconduct Evidence
- Identify misconduct or criminal acts the prosecution intends to use.
- Determine the stated purpose for offering the evidence.
- Raise admissibility objections within the schedule governing retrial.
CPL §§ 245.20 and 245.10 require disclosure of specified misconduct the prosecution intends to use, generally no later than 15 days before the first scheduled trial date. That language does not itself create a new 15-day period for a retrial, so later disclosures should be checked against the record, continuing duties, and court orders.
4. Coordinate Scheduling and Witness Preparation
A retrial puts motions, discovery, witnesses, and trial preparation on the same calendar. Adjournments may also affect statutory speedy-trial calculations. The procedural record matters when assessing delay.
Track Retrial and Speedy-Trial Time
- Record the reason and duration of relevant adjournments.
- Review whether particular periods qualify for statutory exclusion.
- Identify when the order occasioning retrial became final.
Under CPL § 30.30(7), a criminal action retried after a mistrial, new-trial order, appeal, or collateral attack is deemed to commence for that section when the order occasioning retrial becomes final.
Prepare Witnesses and Trial Materials
- Determine which witnesses require subpoenas for the renewed proceeding.
- Review prior testimony before preparing examination or cross-examination.
- Confirm outstanding filings and court-ordered requirements.
Preparation should reflect the evidence expected at the new trial rather than simply duplicate the first proceeding. Witnesses, exhibits, motions, and unresolved evidentiary issues should be organized around the renewed trial record.
5. Frequently Asked Questions
Does a DUI retrial erase rulings from the first trial?
Not automatically. The effect of an earlier ruling depends on the procedural history, later developments, and the issues properly presented before retrial.
Can newly discovered evidence support another suppression motion?
Potentially. CPL § 710.40 permits renewal in certain circumstances when pertinent facts could not have been discovered earlier with reasonable diligence.
Does discovery continue after a retrial is ordered?
Yes. CPL § 245.60 imposes a continuing disclosure duty when additional discoverable material becomes known. Constitutional disclosure duties may also apply independently.
Does the speedy-trial period simply continue from the first trial?
Not necessarily. CPL § 30.30 contains a specific retrial rule, and the calculation can also depend on statutory exclusions and procedural history.
6. Prepare for a DUI Retrial with SJKP
A retrial may require renewed attention to suppression issues, discovery, expert evidence, witnesses, and scheduling. SJKP's attorneys can review the procedural record, assess unresolved pretrial issues, and prepare appropriate motions and trial materials. Contact SJKP to discuss the procedural issues involved in a DUI retrial.
23 Feb, 2026
