Jurisdiction - The legal authority of a court to hear and decide a certain type of case. It also is used as a synonym for venue, meaning the geographic area over which the court has territorial jurisdiction to decide cases.⏎
Impeachment - 1. The process of calling a witness's testimony into doubt. For example, if the attorney can show that the witness may have fabricated portions of his testimony, the witness is said to be "impeached;" 2. The constitutional process whereby the House of Representatives may "impeach" (accuse of misconduct) high officers of the federal government, who are then tried by the Senate.⏎
Hearsay - Evidence presented by a witness who did not see or hear the incident in question but heard about it from someone else. With some exceptions, hearsay generally is not admissible as evidence at trial⏎