Massachusetts Legal Developments Blog

Admissible Evidence in a Court Trial


Evidence in a criminal case is supposed to prove that a defendant is guilty without reasonable doubt or innocent of all charges. Sometimes evidence may have been tampered with or destroyed, wrongfully obtained, or produced from witnesses that lack honesty. In these instances, the guilt of the defendant may not be proven without reasonable doubt.

In the past, the Massachusetts Supreme Judicial Court (SJC) has called for new trials involving cases of a lack of scientific reliability of field tests in drug-related offenses, mishandling of evidence by police, and the absence of credibility involving scientific evidence experts. In these situations, the admission of such evidence can be prejudicial and erroroneous. If you are facing a drug-related charge or a criminal offense, you should speak with a criminal defense attorney who will examine all the evidence to ensure you have a fair trial to prove your innocence.

Types of Evidence Used in a Court Trial

Scientific evidence is important in criminal trials. Scientific evidence uses scientific methods to establish credibility in a case. Scientific evidence goes further than the knowledge of a judge or jury. The evidence has been tested and accepted by the scientific community at large.

Scientific evidence can be paramount in drug possession charges. It must meet specific standards to be admitted in a court. The scientific or forensic evidence is considered physical evidence and is presented as an exhibit in a criminal case. Other examples of physical evidence may include:

  • Drugs, drug paraphernalia, or drug money (unlawful contraband)

  • Footprints or tracks

  • DNA from blood, hair, or other bodily samples

  • Videos and photos

Inadmissible Evidence in a Court Trial

For evidence to be admissible in court, the evidence must be relevant in proving or disproving an element in a criminal trial. If the evidence is not relevant to the case, it will be considered inadmissible. Also, the evidence must be reliable and come from a credible source or witness.

While most evidence can be used in a court trial, there is some evidence that cannot be used in a courtroom. Defendants in criminal trials have certain rights that are protected by the U.S. Constitution. Evidence that violates their rights cannot be admissible, which may include:

  • Character Evidence

  • Forged Evidence

  • Tainted Evidence

  • Self-Incrimination

  • Plea Bargains

  • Out of Court Testimony

  • Unfairly Prejudicial information

  • Misleading or Unreliable Witnesses

  • Planted Evidence

  • Suppressed Evidence

Contact a Criminal Defense Attorney in Boston

Evidence in a court trial is key to proving a defendant's innocence or guilt. If you or a loved one is accused of a drug offense or criminal charge, you want the evidence to be thoroughly examined by a criminal defense attorney who can ensure that you receive your entitled rights and protection under the law. The presentation of evidence is crucial to your case and proving your innocence during a court trial.

Boston criminal defense attorney Edward Molari will provide you with legal advice that may help reduce your punishment, lessen your charge, or dismiss your case altogether. He cares about your situation and provides personalized legal services in every case. Contact attorney Edward Molari at 617-942-1532 for a free consultation.