Reasons to Consider Challenging Breath and Blood Test Results
Challenging test results may be appropriate if there are signs that testing devices were not properly maintained, if blood samples lack clear chain-of-custody documentation, or if the timing and circumstances of testing raise questions about result accuracy. Other reasons include medical conditions that could affect readings, operator error, or insufficient probable cause for the stop or search. Addressing these issues can limit the weight of evidence against a defendant and may lead to case resolution that minimizes penalties and long-term consequences in Aberdeen.
Individuals should also consider challenges when administrative penalties such as license suspension are at stake or when a conviction would carry particularly severe collateral consequences. A thorough review can reveal options that reduce risk, including plea alternatives, diversion where available, or litigation strategies aimed at excluding unreliable evidence. Consulting with counsel early provides clarity on the best path forward based on the specific facts, potential defenses, and personal priorities of the client in Monroe County.
Common Situations Where Test Challenges Arise
Challenges commonly arise when calibration logs are missing, the breath device operator lacks proper documentation of training, the timing between driving and testing suggests readings are unreliable, or blood samples show gaps in handling records. Additional triggers include medical conditions that mimic impairment, conflicting witness statements, or discrepancies between field observations and chemical test results. Recognizing these circumstances helps determine whether a legal challenge is likely to affect case outcomes in Aberdeen and whether further investigation is warranted.
Missing or Incomplete Calibration Records
Missing or incomplete maintenance or calibration records for breath-testing equipment can be a significant issue because they call into question whether readings reflected actual alcohol concentration. Without proper documentation showing routine checks and maintenance, it may be difficult for the prosecution to prove the device was reliable at the time of testing. In Aberdeen cases, obtaining and scrutinizing these records is often a primary step in evaluating the strength of a chemical test challenge and determining appropriate legal remedies.
Chain-of-Custody Gaps for Blood Samples
Breaks or inconsistencies in the chain of custody for blood samples can raise reasonable doubt about sample integrity and identification. Any missing signatures, unclear transfer logs, or unexplained periods where the sample’s handling is undocumented may support a motion to exclude lab results. In Monroe County, defense counsel will review chain-of-custody documentation closely and seek clarifications or admissions from the prosecution when records are incomplete or contradictory to protect client interests.
Operator or Procedure Errors
Errors by the person administering a breath or blood test—such as incorrect operation of equipment, failure to follow protocol, or improper sample labeling—can undermine reliability. These mistakes often appear in training records, incident reports, or during deposition and trial testimony. Identifying such errors may lead to suppressed results or provide strong leverage in plea negotiations. For Aberdeen defendants, thorough review and documentation of operator actions help reveal whether such procedural flaws meaningfully affected test outcomes.
