Weapons Offenses: Possession for Unlawful Purpose (2C:39-4) and Unlawful Possession (2C:39-5)

Two Statutes, Two Different Mental States

New Jersey's weapons code splits unlawful weapons conduct into two offenses with sharply different mental-state requirements. Knowing the distinction is one of the most heavily tested criminal-code points on the NJ LEE because it separates a purpose element from a bare possession element.

N.J.S.A. 2C:39-4 — Possession of a Weapon for an Unlawful Purpose is a purpose-based offense. The State must prove the defendant possessed a weapon AND had the purpose to use it unlawfully against the person or property of another. The weapon itself may be one the person could lawfully own — for example, a registered hunting rifle — but the unlawful purpose attached to the conduct elevates it to a crime. The statute grades by weapon type:

• a.(1) Firearms possessed for an unlawful purpose — crime of the second degree (5-10 years).
• a.(2) Community guns (a firearm passed among two or more persons engaged in criminal activity) — second degree with a mandatory minimum of one-half the sentence or three years (whichever is greater), with parole ineligibility during that minimum.
• b. Explosive substances for an unlawful purpose — second degree.
• c. Destructive devices for an unlawful purpose — second degree.
• d. Other weapons (any weapon other than a firearm — knives, clubs, bats) — third degree (3-5 years).
• e. Imitation firearms under circumstances that would lead a reasonable observer to believe unlawful purpose — fourth degree (up to 18 months).

The mental-state phrase is "purpose to use it unlawfully against the person or property of another." Purpose is a higher mens rea than knowledge or recklessness. Circumstantial evidence — reaching for the weapon during an argument, prior threats, modifications to the weapon, social-media posts — is typically how the State proves purpose. Without that purpose element, the same conduct is not a 2C:39-4 violation even if the weapon is dangerous.

Unlawful Possession Under 2C:39-5

N.J.S.A. 2C:39-5 — Unlawful Possession of Weapons is a status-based offense: possessing a regulated weapon without the required permit, license, or firearms purchaser identification card (FPIC) is the crime itself, regardless of the possessor's purpose. You can have no intent to harm anyone and still be guilty. Grading by subsection:

• a. Machine guns without a license under 2C:58-5 — second degree.
• b.(1) Handguns without a permit to carry under 2C:58-4 — second degree. This is the classic NJ unlawful-handgun charge and triggers the Graves Act presumption of imprisonment.
• b.(2) Air guns/spring guns/BB pistols (.38 caliber or smaller projectile) — third degree.
• c. Rifles and shotguns without an FPIC under 2C:58-3, or a loaded rifle/shotgun under circumstances not manifestly appropriate for lawful use — third degree.
• d. Other weapons under circumstances not manifestly appropriate for lawful use — fourth degree.
• e. Firearms on school grounds without authorization — third degree (separate from the school-zone CDS enhancement in 2C:35-7).
• f. Assault firearms unless licensed, registered, or rendered inoperable — second degree.

Two enhancements matter on the exam. Subsection i (Graves Act trigger): for convictions under a, b, or f, if the aggravating factor of organized criminal activity applies, the court must impose a minimum 5-year term of parole ineligibility. Subsection j: a violation of a, b, c, or f is upgraded to a first-degree crime if the defendant has a prior conviction for certain enumerated crimes.

Comparison: Unlawful Purpose vs. Unlawful Possession

A defendant holding a registered handgun during a road-rage incident faces 2C:39-4a (purpose to use unlawfully) — not 2C:39-5b (because the permit exists). A defendant carrying an unregistered concealed handgun with no threatening behavior faces 2C:39-5b — not 2C:39-4a. Both can be charged when the unregistered weapon is also displayed with intent.

This separation is one of the highest-yield distinctions in the NJ LEE criminal-code block. Read the fact pattern for the purpose words ("pointed at," "threatened," "said he would shoot") versus the possession words ("no permit," "no FPIC," "unregistered").

Worked Scenarios

Scenario A: During a bar fight, defendant pulls a legally purchased, registered handgun from his waistband and threatens to shoot the bouncer. Defendant has a valid carry permit. The proper charge is 2C:39-4a (possession of a firearm for an unlawful purpose), second degree. 2C:39-5b does not apply because the carry permit is valid; the offense is the unlawful purpose, not the possession.

Scenario B: Police find an unlicensed concealed handgun in defendant's car during a routine traffic stop. No threats, no brandishing, no argument. The proper charge is 2C:39-5b(1) (unlawful possession of a handgun), second degree. 2C:39-4a does not apply because there is no evidence of an unlawful purpose. If the defendant has a prior conviction for an enumerated crime, subsection (j) upgrades the offense to first degree.

Scenario C: Defendant carries a baseball bat into a rival's driveway at night, yelling threats. The bat is not a regulated weapon under 2C:39-5, but the purpose element is satisfied by the threats and circumstances. The proper charge is 2C:39-4d (other weapons for unlawful purpose), third degree. If the same bat is carried to a baseball game, no offense — the circumstances are manifestly appropriate for lawful use.

These three scenarios show how the same fact pattern pivots between 2C:39-4 and 2C:39-5 depending on (1) whether the weapon is regulated, (2) whether the possessor has the required permit, and (3) whether the conduct shows an unlawful purpose. The exam almost always tests these three variables in combination.