Former Cook County Felony Prosecutor
Perjury
Charged with Perjury in Illinois? Andrew M. Weisberg Can Defend Your Rights
Being charged with perjury in Illinois is a serious matter that can threaten your freedom, your reputation, and your future. Perjury allegations typically arise from statements made in court, depositions, sworn affidavits, or other legal proceedings where honesty is legally required. Prosecutors treat perjury cases seriously because they believe false testimony undermines the integrity of the justice system. A conviction can result in prison time and a permanent felony record.
If you are facing perjury charges in Chicago or anywhere in Cook County, it is essential to have an experienced criminal defense attorney protecting your rights. Andrew M. Weisberg is a former Cook County prosecutor who understands how perjury cases are investigated and prosecuted. He uses that experience to build strategic defenses designed to protect his clients and achieve the best possible results.
Call (773) 908-9811 for a free consultation if you have been charged with perjury.
Understanding Perjury Under Illinois Law
Perjury is defined under 720 ILCS 5/32-2. A person commits perjury when, while under oath or affirmation in a legal proceeding, they knowingly make a false statement about a material matter.
Although the definition may sound straightforward, perjury cases are often complex. Prosecutors must prove not only that a statement was false, but also that the person knew it was false at the time and that the statement was important to the case.
Perjury allegations often arise in situations such as:
- Testimony during a criminal or civil trial
- Statements made in depositions
- Written affidavits or sworn statements
- Grand jury testimony
- Statements made in family court proceedings
- Sworn financial disclosures
- Administrative or licensing hearings
In many cases, perjury charges grow out of another legal matter. A witness or defendant may give testimony that prosecutors later claim was intentionally false. These cases often turn on subtle differences in wording, interpretation, or memory.
Because of this complexity, perjury cases frequently involve detailed analysis of transcripts, recordings, and prior statements.
Elements the Prosecution Must Prove
To obtain a conviction for perjury, the State must prove several specific elements beyond a reasonable doubt.
Statement Made Under Oath
The statement must have been made under oath or affirmation. This typically occurs in court proceedings or depositions where a person formally swears to tell the truth.
Statements made casually to police officers or investigators generally do not qualify as perjury, although they may lead to other charges.
Knowingly False Statement
The prosecution must prove that the statement was knowingly false at the time it was made. This is one of the most difficult elements to prove.
A mistaken statement, faulty memory, or misunderstanding of a question does not necessarily constitute perjury. People often remember events differently, particularly when testifying about stressful or emotional situations.
Materiality
The alleged false statement must be material to the legal proceeding. A statement is material if it had the potential to influence the outcome of the case or affect the decisions of the court or jury.
Minor inaccuracies or irrelevant statements usually do not meet the legal definition of perjury.
Materiality is often a contested issue in perjury cases and can be an important area for the defense.
Legal Proceeding Requirement
The statement must occur in a formal legal setting where the individual was legally required to tell the truth. This requirement distinguishes perjury from other offenses involving false statements.
Penalties for Perjury in Illinois
Perjury is classified as a Class 3 felony in Illinois. A conviction can result in significant penalties.
Possible penalties include:
- 2 to 5 years in prison
- Probation in appropriate cases
- Fines of up to $25,000
- Court costs and assessments
Even when probation is imposed instead of prison, a felony conviction can have lasting consequences.
Judges often consider factors such as criminal history, the seriousness of the underlying case, and the impact of the alleged false testimony when determining a sentence.
Long-Term Consequences of a Perjury Conviction
A perjury conviction can create long-term consequences that extend far beyond the criminal case itself.
Permanent Felony Record
A felony conviction becomes part of your permanent criminal record. Unlike many misdemeanor cases, felony convictions generally cannot be expunged or sealed.
This record can appear in background checks conducted by employers, landlords, and licensing agencies.
Employment and Professional Consequences
A perjury conviction can be especially damaging for individuals who hold professional licenses or work in positions requiring trust and credibility.
Professionals in fields such as law, finance, healthcare, and government employment may face disciplinary action or loss of licensure following a conviction.
Even outside licensed professions, a felony conviction for dishonesty can make finding employment significantly more difficult.
Courtroom Credibility Issues
A perjury conviction can affect your credibility in future legal proceedings. If you testify in court in the future, opposing attorneys may attempt to use the conviction to challenge your credibility.
This consequence can affect both personal and business legal matters.
How Perjury Charges Are Investigated
Perjury investigations often begin after prosecutors or investigators review sworn testimony and believe that statements may have been false.
These investigations frequently involve:
- Reviewing transcripts and recordings
- Comparing prior statements
- Interviewing witnesses
- Examining documents and records
- Consulting expert witnesses when necessary
Because perjury charges often develop after the original case is completed, individuals are sometimes surprised when they learn they are under investigation.
Early legal representation can be extremely important during this stage.
Defending Against Perjury Charges
Successfully defending a perjury case requires careful preparation and detailed analysis of the evidence. Andrew M. Weisberg works closely with clients to understand exactly what occurred and to identify the strongest defenses available.
Lack of Intent
One of the most important defenses in a perjury case is the absence of intent. The State must prove that the defendant knowingly made a false statement.
If the statement resulted from confusion, mistake, or faulty memory, the required intent may be missing.
Testimony often involves complicated timelines or technical details, and honest mistakes are common.
Truthfulness of the Statement
In some cases, the defense may be able to show that the statement was actually true or at least reasonably accurate.
If the statement was truthful, even partially truthful, or subject to interpretation, the prosecution may not be able to meet its burden of proof.
Lack of Materiality
Even if a statement was inaccurate, it may not qualify as perjury unless it was material to the case.
Andrew carefully analyzes whether the alleged false statement actually had the potential to influence the legal proceeding.
If the statement was not material, the charge may not be sustainable.
Misunderstanding or Ambiguous Questions
Perjury allegations often arise from ambiguous or confusing questions. A witness may interpret a question differently than the questioner intended.
Andrew reviews transcripts carefully to determine whether the questioning was clear and whether misunderstandings may have occurred.
Constitutional and Evidentiary Issues
In some cases, perjury charges involve statements obtained during investigations that raise constitutional concerns.
Andrew reviews the circumstances surrounding the investigation to determine whether any rights were violated and whether evidence may be subject to suppression.
Why Andrew M. Weisberg Is the Right Choice
When you are facing a felony charge such as perjury, the experience and judgment of your attorney matter. Andrew M. Weisberg has decades of experience handling serious criminal cases in Cook County courts.
As a former Cook County prosecutor, Andrew understands how perjury cases are investigated and presented. He uses that knowledge to anticipate the prosecution’s strategy and prepare effective defenses.
Clients who hire Andrew benefit from:
- Direct communication with their attorney
- Careful analysis of transcripts and evidence
- Strategic defense planning
- Honest advice and guidance
- Strong courtroom advocacy
Andrew understands that perjury allegations often arise from complicated legal situations. He works to present the full context of the testimony and to ensure that the court understands the facts clearly.
Speak With an Illinois Perjury Defense Attorney
If you have been charged with perjury in Chicago or anywhere in Illinois, it is important to speak with an experienced criminal defense attorney as soon as possible. Early preparation can be critical to protecting your rights and building a strong defense.
Andrew M. Weisberg represents clients facing serious felony charges throughout Cook County.
Call (773) 908-9811 today for a free consultation or fill out an online form and Mr. Weisberg will contact you very quickly.
Perjury charges can threaten your freedom and your future. Andrew is prepared to provide the strong defense you need.




















