Former Cook County Felony Prosecutor
Unlawful Possession of Weapon
Charged with Unlawful Possession of a Weapon (UPW) in Chicago? Andrew M. Weisberg Can Protect Your Future
(Formerly Unlawful Use of a Weapon – UUW)
Being charged with Unlawful Possession of a Weapon (UPW) in Chicago is a serious matter that can result in jail time, significant fines, and a permanent criminal record. Many people are surprised to learn that simply possessing a firearm without strictly complying with Illinois law can lead to criminal charges—even when the weapon was never used or displayed. Illinois has some of the most complex and restrictive firearm laws in the country, and even technical violations can result in arrest and prosecution.
Cook County prosecutors now treat weapons cases as priority offenses and frequently pursue convictions even in situations that once might have been resolved with probation or diversion. If you are facing UPW charges, it is essential to have an experienced defense attorney who understands both the law and the realities of Cook County courtrooms.
Andrew M. Weisberg is a former Cook County prosecutor and experienced Chicago criminal defense attorney who has handled numerous weapons cases from both sides of the courtroom. His insight into how prosecutors build gun cases allows him to identify weaknesses in the State’s evidence and develop effective defense strategies designed to protect your freedom and your future.
Understanding Unlawful Possession of a Weapon in Illinois
Unlawful Possession of a Weapon is governed primarily by 720 ILCS 5/24-1, a statute that covers a wide range of firearm and weapon-related conduct. The law makes it illegal to possess certain weapons or to possess firearms in violation of Illinois regulations regarding licensing, transportation, and permitted locations.
Illinois firearm laws require strict compliance with multiple requirements. In many cases, individuals charged with UPW legally owned the firearm but failed to follow one of Illinois’ technical rules governing possession or transport.
Common situations that lead to UPW charges include possession of a firearm without a valid Firearm Owner’s Identification (FOID) card, improper transportation of a firearm in a vehicle, carrying a firearm without a valid Concealed Carry License (CCL), or possessing a weapon in a location where firearms are prohibited.
Unlike a minor ordinance violation or traffic ticket, UPW is a criminal offense that requires a court appearance and can result in jail or prison. Even first-time offenders can face serious consequences if the case is not handled properly.
Common Examples of UPW Charges in Chicago
UPW charges arise in many different situations, and many cases begin with routine police encounters that escalate into criminal investigations. One of the most common scenarios involves firearms discovered during traffic stops. Police may recover a weapon from a glove compartment, center console, backpack, or under a seat. Even when a firearm is legally owned, improper transportation—such as having the gun loaded or uncased without proper licensing—can result in arrest.
Another frequent situation involves individuals carrying firearms in public without a valid Concealed Carry License. Illinois law allows licensed concealed carry, but carrying without the proper license can lead to criminal charges even if the person has a valid FOID card and legally purchased the firearm.
UPW charges also frequently arise when firearms are discovered in shared residences or vehicles. In these situations, prosecutors may rely on constructive possession theories, arguing that a person had knowledge of the weapon and control over the area where it was found. These cases often involve disputes over who actually possessed the firearm.
Airports have also become an increasingly common location for weapons arrests. Travelers sometimes forget that a firearm is in a suitcase or backpack and are arrested when the weapon is discovered by TSA. In the past, many of these cases were resolved through deferred prosecution programs, but prosecutors increasingly seek criminal convictions or sentences involving community service through programs such as SWAP (Sheriff’s Work Alternative Program). These cases require careful handling because a conviction can have lasting consequences even when the incident was an honest mistake.
UPW charges can also involve weapons other than firearms. The statute covers certain prohibited weapons such as switchblades, metal knuckles, ballistic knives, and other restricted devices. Possession of these items can lead to misdemeanor or felony charges depending on the circumstances.
Illinois Firearm Licensing Requirements
Illinois requires firearm owners to comply with several layers of regulation. A person must generally possess a valid FOID card in order to legally own or possess a firearm or ammunition. Carrying a firearm in public typically requires a Concealed Carry License in addition to a FOID card.
Failure to maintain valid licensing is one of the most common reasons people are charged with UPW. A FOID card that has expired or been revoked can result in criminal charges if a firearm is still in the person’s possession. Similarly, individuals who legally purchase firearms but do not obtain concealed carry licenses may face charges if they carry the weapon in public.
Transportation rules are also strict. Firearms typically must be unloaded and enclosed in a case unless the person has a valid concealed carry license. Violations of these transportation requirements frequently result in arrests.
Illinois law also prohibits firearms in certain locations, including schools, government buildings, courthouses, public transportation, and establishments that primarily serve alcohol. Even licensed firearm owners can face criminal charges if they enter prohibited areas while carrying a weapon.
Penalties for Unlawful Possession of a Weapon
The penalties for UPW vary widely depending on the circumstances of the case and the defendant’s criminal history. Some violations are charged as misdemeanors, while others are felonies carrying potential prison sentences.
A first-time violation involving possession of a firearm without a valid FOID card may be charged as a Class A misdemeanor, punishable by up to one year in jail and fines of up to $2,500. However, many UPW charges are prosecuted as felonies.
A Class 4 felony UPW conviction can result in one to three years in prison and substantial fines. More serious circumstances, such as possession in restricted areas or prior weapons convictions, can result in Class 2 felony charges, carrying possible prison sentences of three to seven years.
Repeat offenders or cases involving additional aggravating factors may result in even more severe penalties. In certain circumstances, Illinois law provides for Class X felony sentencing, which carries prison terms of six to thirty years and does not allow probation.
Beyond the immediate penalties, a conviction can result in a permanent criminal record that cannot be sealed or expunged. A felony conviction typically results in a lifetime loss of firearm rights and may create serious employment and housing barriers. Non-citizens may face severe immigration consequences, including possible deportation.
Tougher Enforcement of Weapons Cases in Cook County
Cook County prosecutors have taken an increasingly aggressive approach to weapons cases. In recent years, prosecutors have sought felony charges more frequently and have pushed for incarceration in situations where probation was once common.
Courts also increasingly detain defendants pretrial in serious weapons cases, particularly when firearms are loaded or allegedly accessible. As a result, individuals charged with UPW often face both the immediate risk of detention and the long-term risk of prison if convicted.
Because of this environment, early legal intervention can be critical to protecting a defendant’s rights and improving the chances of a favorable outcome.
Defending Against UPW Charges
UPW cases often depend heavily on police procedures and physical evidence. Andrew M. Weisberg carefully reviews every aspect of a weapons case to identify legal and factual defenses.
One of the most important areas of defense involves illegal searches and seizures. Many firearms are recovered during vehicle searches or street encounters. If police lacked probable cause or conducted an unlawful search, the firearm may be suppressed as evidence. Without the weapon, the prosecution often cannot proceed.
Another common defense involves lack of possession. When firearms are discovered in shared spaces such as vehicles or residences, the State must prove that the defendant knew about the weapon and had control over it. Simply being present near a firearm does not automatically establish possession.
Andrew also challenges cases involving constructive possession, where prosecutors attempt to prove possession through circumstantial evidence. These cases often depend on weak or disputed facts and can sometimes be successfully contested.
Other defenses may include lack of knowledge, mistaken identity, and procedural violations by law enforcement. Careful investigation of police reports, witness statements, and body camera footage often reveals weaknesses in the State’s case.
Why Choose Andrew M. Weisberg
Andrew M. Weisberg is a former Cook County prosecutor who has spent decades handling serious criminal cases in Chicago courtrooms. His experience on both sides of the courtroom gives him valuable insight into how gun cases are investigated and prosecuted.
Clients benefit from Andrew’s detailed case preparation, strategic approach to defense, and willingness to challenge the State’s evidence when necessary. He handles each case personally and works directly with clients throughout the process, providing clear communication and experienced representation at every stage.
Speak With a Chicago Weapons Defense Attorney Today
Unlawful Possession of a Weapon charges can carry life-changing consequences, including jail or prison and a permanent criminal record. With Cook County prosecutors aggressively pursuing gun cases, experienced legal representation is essential.
Call (773) 908-9811 today for a free consultation, or fill out the online contact form for a free case review, and Mr. Weisberg will get back to you quickly.
Andrew will evaluate your case, explain your options, and build a strong defense designed to protect your freedom and your future.




















