When an incident is reported to Chicago police, the likelihood of an arrest depends entirely on the classification of the offense. A liquor law violation ends in an arrest 93.9% of the time. A report of criminal damage results in an apprehension just 4.3% of the time.
Key takeaway: Chicago arrest rate data reveals a sharp divide between proactive enforcement categories—like weapons and narcotics, which clear at rates above 70%—and reactive property or complex personal crimes, which frequently clear at under 10%.
Highest Arrest Rates for Offense Types in Chicago
Let's look at the top tier of Chicago crimes with arrests. Liquor Law Violation leads the city with a 93.9% arrest rate, logging 323 arrests across 344 incidents. Weapons Violation follows closely, generating 7,505 arrests from 10,250 incidents for a 73.2% rate.
These numbers reflect enforcement mechanics rather than investigative success. Officers typically discover these offenses during a stop or search. This means the incident and the arrest happen simultaneously.
Citizens rarely call 911 to report an unattended open container or a concealed weapon. Because the police initiate the encounter, there is virtually no backlog of "unsolved" liquor or weapons reports dragging down the averages.
| Offense Type | Total Incidents | Arrests | Arrest Rate |
|---|---|---|---|
| Liquor Law Violation | 344 | 323 | 93.9% |
| Weapons Violation | 10,250 | 7,505 | 73.2% |
| Public Peace Violation | 1,907 | 963 | 50.5% |
| Homicide | 830 | 263 | 31.7% |
| Criminal Trespass | 9,420 | 2,969 | 31.5% |
Moderate Arrest Rates for Serious Offenses
Chicago police clearance rates settle into the middle tiers for more complex incidents. Homicide shows a 31.7% arrest rate, with 263 arrests made against 830 recorded incidents.
Public Peace Violation clears at 50.5%, while Criminal Trespass results in an arrest 31.5% of the time.
Here's the thing:
These mid-range figures often represent crimes where a suspect is either known to the victim or apprehended at the scene, but where evidentiary hurdles exist. Homicide investigations receive maximum detective resources, pulling the clearance rate higher than standard violent offenses.
Battery is the second most common offense overall with 76,422 incidents, but yields an 18.3% arrest rate (14,012 arrests). Assault tracks slightly lower at 12.2%, with 4,682 arrests out of 38,411 reports.
Offenses with Lower Arrest Rates
The vast majority of reported incidents in Chicago fall into categories with single-digit arrest rates. Property crimes and complex financial offenses dominate this end of the spectrum.
Theft is the highest-volume offense citywide, logging 98,565 incidents. Yet it yields just 8,505 arrests, an 8.6% rate. Robbery tracks similarly, with 991 arrests across 11,317 incidents (8.8%).
But there's a catch.
The lowest clearance rates belong to offenses where suspects are difficult to identify or where investigations require extensive forensic or digital evidence. Theft typically involves unattended property where no witnesses exist.
| Offense Type | Total Incidents | Arrests | Arrest Rate |
|---|---|---|---|
| Criminal Sexual Assault | 2,920 | 82 | 2.8% |
| Deceptive Practice | 25,479 | 770 | 3.0% |
| Criminal Damage | 46,758 | 1,995 | 4.3% |
| Stalking | 1,030 | 51 | 5.0% |
| Kidnapping | 176 | 13 | 7.4% |
A report of Criminal Sexual Assault results in an arrest just 2.8% of the time. Deceptive Practice—which includes wire fraud, bounced checks, and identity theft—clears at 3.0%. Criminal Damage sees 1,995 arrests out of 46,758 reports (4.3%).
Stalking yields 51 arrests from 1,030 incidents (5.0%). Kidnapping shows 13 arrests across 176 reports (7.4%). These low percentages highlight the massive gap between public reporting volume and the threshold required for a physical arrest.
Offense Mix in Chicago's Community Area 25
Citywide averages mask neighborhood-level realities. Looking specifically at Community Area 25 crime data, we see 21,188 total incidents with a distinct concentration of property and interpersonal offenses.
Battery leads the community area with 4,723 reported incidents. Theft follows closely with 3,410 reports. Assault accounts for another 2,120 incidents.
Together, these three categories make up nearly half of the area's total reported volume. Motor Vehicle Theft also maintains a heavy presence, logging 1,547 incidents.
Arrest Rates for Top Offenses in Community Area 25
When we examine arrests within Community Area 25, the proactive policing trend mirrors the citywide data. Narcotics offenses generate the highest raw number of apprehensions in the neighborhood.
Out of 1,453 narcotics incidents, officers made 1,392 arrests—a 95.8% local clearance rate. Weapons Violation incidents in the area total 603, resulting in 441 arrests (73.1%). Interference With Public Officer clears at 92.1%, with 70 arrests from 76 incidents.
The result?
High-volume property crimes in the neighborhood rarely end in apprehension. Motor vehicle theft yields just 86 arrests from 1,547 incidents (5.5%). Deceptive Practice sees only 18 arrests across 867 reports (2.0%).
| Offense Type | Incidents | Arrests | Local Arrest Rate |
|---|---|---|---|
| Narcotics | 1,453 | 1,392 | 95.8% |
| Weapons Violation | 603 | 441 | 73.1% |
| Interference With Public Officer | 76 | 70 | 92.1% |
| Criminal Trespass | 314 | 85 | 27.0% |
| Battery | 4,723 | 796 | 16.8% |
| Theft | 3,410 | 425 | 12.4% |
| Assault | 2,120 | 246 | 11.6% |
| Robbery | 745 | 66 | 8.8% |
| Motor Vehicle Theft | 1,547 | 86 | 5.5% |
| Criminal Sexual Assault | 177 | 4 | 2.2% |
| Human Trafficking | 5 | 0 | 0.0% |
Violent and complex crimes in the area show mixed results. Homicide recorded 78 incidents and 27 arrests (34.6%). Arson logged 64 incidents with just 6 arrests (9.3%).
Offense Involving Children saw 11 arrests across 111 incidents (9.9%). At the absolute bottom, Human Trafficking recorded 5 incidents with zero arrests.
Quick Takeaways
- Proactive vs. Reactive: Chicago liquor law violation arrests (93.9%) and chicago weapons violation arrests (73.2%) skew high because they are officer-initiated discoveries, not citizen complaints.
- Property Crime Hurdles: Theft accounts for nearly 100,000 citywide incidents but maintains an 8.6% arrest rate.
- Neighborhood Variances: In Community Area 25, narcotics enforcement drives local arrest volume, clearing at 95.8%.
- Severe Offense Challenges: Criminal sexual assault (2.8%) and deceptive practice (3.0%) rank at the absolute bottom for arrest likelihood citywide.