Pre-trial motions are requests made to the court before a trial begins. These motions can address various issues, such as the admissibility of evidence, the dismissal of charges, or the change of venue. They help clarify legal matters and can significantly impact the trial's outcome. Common types of pre-trial motions include motion to suppress, which seeks to exclude certain evidence, and motion for summary judgment, which asks the court to rule in favor of one party without a trial. These motions allow both parties to present their arguments and can streamline the trial process.