Perjury Definition: Understanding the Consequences of Lying Under Oath

Learn about the definition of perjury, its consequences, examples, case studies, and statistics. Understand the severity of lying under oath.

What is Perjury?

Perjury is the act of deliberately lying under oath or in a sworn statement during a legal proceeding. It is considered a serious offense and can have severe consequences.

Consequences of Perjury

Perjury undermines the justice system by allowing false information to be presented as truth. Depending on the jurisdiction, penalties for perjury can include fines, jail time, and a criminal record.

Examples of Perjury

One famous example of perjury is the case of Martha Stewart, who was convicted of lying to investigators about a stock sale. Another example is the case of Bill Clinton, who was impeached for lying under oath about his relationship with Monica Lewinsky.

Case Studies

In 2017, former Trump campaign adviser Michael Flynn pleaded guilty to lying to the FBI about his contacts with Russian officials. This case highlights the serious consequences of perjury in high-profile legal proceedings.


According to a study by the American Bar Association, perjury is a common issue in court cases, with an estimated 45% of witnesses lying under oath. This statistic underscores the importance of upholding the truth in legal proceedings.

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