

Many times, the victim in a case serves as witness for the prosecution, as the information they provide is deemed credible and detailed.Īn individual who serves as witness for the prosecution may be questioned by the defendant (or his attorney), in what is known as “cross-examination.” This gives the defense an opportunity to establish the fact that the witness gave false, biased, or inconsistent testimony. While presenting the case, the prosecutor submits evidence gathered during the investigation, and calls witnesses, who testify about what they say, heard, or otherwise know about the case.
#Expert witness legal definition trial
When a criminal trial takes place, the prosecution must convince the judge or jury that the defendant is guilty of the crime. Law enforcement officers and various experts are often called to serve as witness for the prosecution. These witnesses are called to provide testimony in support of the prosecution’s case against the accused. Witness for the ProsecutionĪ witness for the prosecution is used in state or federal criminal court cases. The jury will rely, in part, on testimony of these witnesses in making their decision.

During trial, both the prosecution and defense are likely to call people who were present at the bar when the stabbing took place to testify about the incident. During the fight, someone was stabbed, and John has now been charged with the crime. John gets into a fight while playing pool at the corner bar.
