Not all police reports end in handcuffs. For some offenses in Chicago, the likelihood of an arrest is a near certainty, while for others, the rate sits below 4%.
The disparity comes down to how incidents are discovered and reported. When analyzing chicago police data arrests, a clear divide emerges between officer-initiated encounters and after-the-fact property crimes.
Key takeaway: The highest chicago arrest rates by offense occur in regulatory and officer-initiated encounters like concealed carry violations (97.4%), while high-volume property crimes like motor vehicle theft see arrest rates hover at just 3.1%.
Here is the reality: an incident report does not equal a cleared case. To understand municipal enforcement, you have to look at the conversion rate from reported incident to physical arrest.
Top Arrest Rates in Chicago: Concealed Carry and Liquor Law Violations
The offenses with the highest arrest rates are typically those where the crime is discovered simultaneously with the suspect. The incident report is generated precisely because an arrest is taking place.
Concealed Carry License Violation leads the dataset. Out of 416 recorded incidents, officers made 405 arrests, resulting in a 97.4% arrest rate.
Similarly, liquor law violation arrests chicago show a near-perfect clearance. With 335 incidents and 315 arrests, the rate sits at 94.0%. These are not crimes reported by victims the next morning; they are regulatory infractions enforced on the spot.
Here is the complete breakdown of chicago crime statistics arrest rates for major offense categories:
| Offense Type | Total Incidents | Total Arrests | Arrest Rate |
|---|---|---|---|
| Concealed Carry License Violation | 416 | 405 | 97.4% |
| Liquor Law Violation | 335 | 315 | 94.0% |
| Weapons Violation | 10,072 | 7,384 | 73.3% |
| Public Peace Violation | 1,843 | 915 | 49.6% |
| Criminal Trespass | 9,261 | 2,912 | 31.4% |
| Battery | 74,937 | 13,756 | 18.4% |
| Assault | 37,734 | 4,593 | 12.2% |
| Kidnapping | 170 | 13 | 7.6% |
| Stalking | 1,016 | 50 | 4.9% |
| Burglary | 17,742 | 776 | 4.4% |
| Motor Vehicle Theft | 31,826 | 984 | 3.1% |
| Deceptive Practice | 25,206 | 765 | 3.0% |
Weapons Violations and Public Peace Incidents Show High Arrest Rates
The weapons violation arrest rate chicago is exceptionally high for a high-volume offense. Police recorded 10,072 weapons violations, resulting in 7,384 arrests.
That 73.3% arrest rate reflects proactive policing strategies. Illegal firearms are most frequently recovered during traffic stops, foot pursuits, or search warrant executions. The suspect is already detained when the weapon is found.
Public Peace Violations follow a similar, though slightly lower, pattern. Out of 1,843 incidents, police made 915 arrests.
This 49.6% rate for public peace offenses points to the nature of the crime. These incidents often involve disorderly conduct or mob action where officers arrive while the disturbance is still active.
Mid-Range Arrest Rates: Criminal Trespass, Battery, and Assault
As we move away from proactive enforcement and into victim-reported crimes, the arrest rates drop significantly. The criminal trespass arrest rate chicago sits at 31.4%.
Officers responded to 9,261 trespassing complaints and made 2,912 arrests. Trespassing requires the offender to still be on the property when police arrive, or for the property owner to press charges against a known individual.
Violent crimes against persons show massive volume but lower percentage yields:
- Battery: 74,937 incidents resulted in 13,756 arrests (18.4%).
- Assault: 37,734 incidents resulted in 4,593 arrests (12.2%).
The result? Battery is the highest-volume arrest generator in the city by sheer numbers. However, the vast majority of these reports do not end in an immediate arrest, often because the offender has left the scene before police arrive.
Lower Arrest Rates: Deceptive Practice and Motor Vehicle Theft
Property and financial crimes consistently show the lowest arrest rates across all types of offenses. Deceptive Practice recorded 25,206 incidents but only 765 arrests.
That 3.0% rate highlights the difficulty of investigating financial fraud, identity theft, and scams. These crimes frequently cross jurisdictional lines and leave little physical evidence.
Motor Vehicle Theft presents a similar challenge for law enforcement. Despite 31,826 reported stolen vehicles, police made only 984 arrests.
At a 3.1% arrest rate, car theft is overwhelmingly an after-the-fact report. Vehicles are typically stolen while unoccupied, meaning victims cannot identify the suspects.
Other serious offenses with single-digit arrest percentages include:
- Burglary: 4.4% arrest rate (776 arrests out of 17,742 incidents).
- Stalking: 4.9% arrest rate (50 arrests out of 1,016 incidents).
- Kidnapping: 7.6% arrest rate (13 arrests out of 170 incidents).
Recent Monthly Incident and Arrest Trends in Chicago
Crime volume in Chicago follows strict seasonal patterns. Incident counts and corresponding arrests peak in the summer and drop during the winter months.
In July 2025, the city recorded 22,391 total incidents and 3,499 arrests. By February 2026, those numbers dropped to 15,972 incidents and 2,557 arrests.
The most recent months in the dataset (May and June 2026) show sharp declines. June 2026 displays just 5,785 incidents and 832 arrests, a common artifact in open data portals where recent records are still being processed and approved.
| Month | Total Incidents | Total Arrests |
|---|---|---|
| June 2026 | 5,785 | 832 |
| May 2026 | 3,284 | 458 |
| April 2026 | 12,294 | 1,761 |
| March 2026 | 18,000 | 2,659 |
| February 2026 | 15,972 | 2,557 |
| January 2026 | 15,952 | 2,640 |
| December 2025 | 16,960 | 2,497 |
| November 2025 | 17,686 | 2,786 |
| October 2025 | 20,752 | 3,048 |
| September 2025 | 19,856 | 3,037 |
| August 2025 | 20,607 | 3,126 |
| July 2025 | 22,391 | 3,499 |
When assessing these monthly totals, the ratio of arrests to incidents remains relatively stable. Even as raw volume fluctuates with the weather, the underlying mechanics of how crimes are cleared dictate the final numbers.
Quick Takeaways
- Officer-initiated offenses clear highest: Concealed carry and liquor law violations both exceed a 94% arrest rate.
- Weapons enforcement is proactive: Over 73% of the 10,072 weapons violations resulted in an arrest.
- Property crime arrests are rare: Motor vehicle theft and burglary both sit below a 5% arrest rate.
- Volume vs. Rate: Battery generates the most total arrests (13,756), despite having a modest 18.4% arrest rate.
- Seasonality drives raw numbers: Total arrests peaked at 3,499 in July 2025 before dropping during the winter months.