Chicago Police Data: Theft Incidents Top 98,000, Narcotics Arrest Rate at 94.6%

Out of every 100 stolen vehicles reported in Chicago, police make an arrest in exactly three of those cases.

When you look at the raw municipal incident records, the narrative around public safety shifts from political talking points to cold, hard resource math. The latest Chicago police data reveals a massive volume of property crimes weighing down the system, contrasted sharply by near-perfect arrest rates in proactive, officer-initiated enforcement categories.

Key takeaway: Property crimes drive the sheer volume of Chicago offense types, but enforcement metrics flip the script. Proactive policing categories like narcotics and gambling see arrest rates above 90%, while massive incident categories like theft and deceptive practice clear at under 9%.

We analyzed the open-data incident logs to see exactly where police resources are going, which crimes result in handcuffs, and how seasonal trends impact the city's overall safety metrics.

Here is what the numbers actually say.

Most Frequent Offenses Recorded in Chicago Police Data

Volume dictates the daily reality for patrol officers and detectives. In Chicago, property crimes absolutely dominate the incident boards.

Theft is the single largest category by a massive margin, logging 98,457 incidents. To put that into perspective, that averages out to roughly 270 theft reports filed every single day across the city.

Despite the overwhelming volume, the arrest rate for theft sits at just 8.6%, with 8,498 total arrests. This low clearance rate is typical for major metropolitan areas where petty theft and retail theft often lack immediate suspects or sufficient evidence for follow-up.

Here is the breakdown of the top five highest-volume offenses in the dataset:

Trailing theft is Criminal Damage, which includes vandalism and property destruction. With 46,692 incidents recorded, it represents the second most common reason Chicagoans interact with the police reporting system.

The arrest rate for criminal damage is even lower than theft, resting at 4.3%. Without eyewitnesses or high-definition surveillance footage, these cases routinely go unsolved, leaving property owners to file insurance claims rather than see criminal prosecution.

Understanding Assault and Motor Vehicle Theft in Chicago

When analyzing Chicago offense types, the distinction between violent crime and high-value property crime reveals differing investigative outcomes.

Assault ranks as the third most frequent offense, with 38,363 documented incidents. Because assault involves direct interpersonal conflict—and often a victim who can identify their attacker—the arrest rate climbs to 12.2%, resulting in 4,674 arrests.

But there's a catch.

While a 12.2% arrest rate is higher than most property crimes, it still means nearly 90% of reported assaults do not result in an immediate arrest. This gap often stems from victims declining to press charges, lack of independent witnesses, or suspects fleeing the scene before patrol units arrive.

Motor Vehicle Theft, meanwhile, presents a unique logistical challenge for law enforcement. The city recorded 32,383 stolen vehicles, but only 1,004 arrests.

That 3.1% arrest rate highlights the reality of modern auto theft:

• Speed of the crime: Vehicles are often stolen in under two minutes and moved across jurisdiction lines.
• Joyriding vs. Chop Shops: Cars are frequently abandoned hours later, meaning police recover the property but never see the thief.
• Investigative priority: Detectives prioritize violent crime, leaving auto theft to automated license plate readers and patrol officers stumbling upon occupied stolen vehicles.

Highest Arrest Rates Among Chicago Offense Types

Here's the thing: high incident volume rarely correlates with high arrest rates. The offenses that actually result in suspects going to jail are almost entirely proactive, officer-initiated stops.

Narcotics offenses tell the clearest story of proactive policing. The city recorded 12,278 narcotics incidents, resulting in 11,619 arrests. That is a staggering 94.6% arrest rate.

This near-perfect clearance rate exists because narcotics incidents are rarely reported by civilian victims. Instead, the "incident" is generated at the exact moment an officer makes a drug arrest during a traffic stop or street encounter.

The data shows a similar pattern across other enforcement-heavy categories:

Interference With Public Officer logged 1,594 incidents and an 89.5% arrest rate. This charge—often involving resisting arrest or obstructing an investigation—inherently requires an officer to be present and actively engaging with a suspect.

Similarly, minor public order offenses like Gambling (96.7%) and Liquor Law Violation (93.9%) show that when police decide to enforce these specific municipal codes, an arrest or formal citation is the guaranteed outcome.

Offenses with Lower Arrest Rates in Chicago

At the opposite end of the spectrum are complex, investigative-heavy crimes that routinely frustrate local law enforcement.

Deceptive Practice—which encompasses fraud, embezzlement, and identity theft—logged 25,463 incidents. Yet, it yielded only 770 arrests, a dismal 3.0% clearance rate.

The result? Financial crimes are effectively decriminalized at the street level. Because these scams often originate out of state or overseas, local Chicago police lack the jurisdiction and cyber-forensic resources to track down the perpetrators.

Intimidation shows the lowest arrest rate in the entire dataset. Out of 290 reported incidents, police made just 6 arrests—a rate of 2.1%. Proving intimidation requires establishing intent and documenting specific threats, a legal hurdle that often prevents officers from making an immediate arrest without a lengthy detective follow-up.

Special Victim and Public Order Offenses

Mid-tier offenses reveal how different types of crimes require entirely different investigative approaches.

Public Peace Violation sits exactly in the middle of the enforcement spectrum. With 1,900 incidents and 958 arrests, officers make an arrest in 50.4% of cases. These incidents, often involving disorderly conduct or mob action, usually end with police dispersing the crowd rather than arresting every participant.

Crimes involving vulnerable victims show surprisingly low immediate arrest rates, reflecting the complex, long-term nature of these investigations:

• Sex Offense: 2,215 incidents, 177 arrests (8.0%).
• Kidnapping: 175 incidents, 13 arrests (7.4%).
• Offense Involving Children: 2,681 incidents, 186 arrests (6.9%).

These low percentages do not necessarily mean the cases are closed without resolution. Instead, they indicate that immediate, on-scene arrests are rare. Detectives must gather forensic evidence, conduct sensitive interviews, and build cases for the State's Attorney before securing an arrest warrant.

Meanwhile, Obscenity recorded 96 incidents with a 46.9% arrest rate, showing that when public order is violated in plain sight, officers are roughly 50/50 on making a physical arrest versus issuing a warning.

Monthly Incident and Arrest Trends in Chicago Police Data

Crime is highly seasonal, and the Chicago crime statistics from mid-2025 through mid-2026 prove it.

The data shows a clear peak in the summer months. July 2025 was the most active month in the dataset, recording a massive 22,391 total incidents and 3,499 arrests.

As the weather cooled, incident volumes steadily dropped. By December 2025, total incidents fell to 16,960, representing a 24% decrease from the July peak.

Here is the month-by-month breakdown of total recorded incidents and arrests:

Truth is: open data portals are subject to reporting lags. The sharp drop in May 2026—showing just 3,284 incidents and 458 arrests—is a classic data pipeline anomaly.

Municipal incident records often take 30 to 90 days to fully populate after initial field reports are approved by supervisors and coded into the central database. The partial rebound in June 2026 to 12,405 incidents suggests the spring data is still actively backfilling into the public system.

Excluding the incomplete spring data, the baseline for Chicago hovers around 16,000 to 18,000 incidents per month during the winter and spring, surging past 20,000 as summer begins.

Quick Takeaways

Understanding Chicago's public safety landscape requires looking past the raw incident counts and focusing on the arrest ratios. The data paints a clear picture of how municipal resources are actually deployed.

• Property crime outpaces enforcement: With over 98,000 theft incidents and 32,000 motor vehicle thefts, property crimes consume the bulk of the incident logs but result in arrests less than 9% of the time.
• Proactive policing guarantees arrests: Offenses like narcotics (94.6% arrest rate) and gambling (96.7%) show that when officers initiate an encounter for a specific violation, an arrest is the standard outcome.
• Fraud is practically un-policeable locally: Deceptive practice generated over 25,000 reports but saw just a 3.0% arrest rate, highlighting the limits of local police in a digital economy.
• Summer spikes are real: Incident volume jumped 24% from the dead of winter (December 2025) to the peak of summer (July 2025), requiring massive shifts in seasonal patrol deployments.