Legal Definitions - perjurer

A perjurer is someone who has committed the crime of perjury. This means that they have knowingly lied or given misleading testimony, either in writing or verbally, after swearing an oath to tell the truth. The oath must have been given before a competent tribunal, officer, or person, such as a court, grand jury, or Congress.

For example, if a witness in a court case swears to tell the truth and then lies on the stand, they have committed perjury and are considered a perjurer. Similarly, if someone signs a document under penalty of perjury stating that all of its contents are true and correct, but they know that some of the information is false, they have committed perjury.

A perjurer can face criminal consequences, including fines, imprisonment for up to five years, or both. Additionally, someone who convinces another person to commit perjury can also face similar consequences. This is known as subornation of perjury.