Why most criminal cases end in plea deals

Judge gavel, scales of justice and law books in court. (Brian A. Jackson/South Florida Sun Sentinel)

Luigi Mangione’s recent plea agreement is a familiar outcome in the American justice system, where the vast majority of criminal cases never make it to trial. The reasoning why most criminal cases end with a plea deal could be quite complex in some cases, but rather simple in others. 

More than nine out of ten convictions nationwide come from plea deals, according to research done by the Vera Institute. Our criminal justice system is shaped by heavy caseloads, limited resources and the high risk defendants face if they choose to fight charges before a jury of their peers. 

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What they're saying:

The Vera Institute of Justice released a review of research done on plea bargaining, saying, "When most people think of the American justice system, they likely picture a courtroom with lawyers, a judge, and a jury waiting to determine the facts of the case," Acting Director Elizabeth Swavola said, "But the majority of people "found guilty" in America never stand trial: their fate is determined in a courthouse hallway or prosecutor’s office via a quick conversation between attorneys."  

Dig deeper:

Legal analysts say the modern criminal justice system is built around negotiation. Trials are often costly, unpredictable and time-consuming. And depending on the parties involved, could lead to more victimization and undue trauma to those impacted. Prosecutors often offer an incentive in exchange for a guilty plea, which allows the prosecution, the defense and the judge to come together to find an equitable solution, tailored specifically for that case that addresses the necessity for a defendant to answer to the crime while allowing all parties to avoid the burden a jury trial could bring. 

RELATED: What’s next for Luigi Mangione after his federal guilty plea?

The other side:

Defense attorneys say that dynamic shapes nearly every case. The caseloads, mandatory minimums and structured sentencing guidelines can make plea deals the best and only path forward for many defendants. 

Big picture view:

Cases like Mangione’s underscore the broader pattern in American courts, not just for violent crime, but all crime in general; trials are no longer the default, they are the outlier. The system runs on plea deals. 

Violent crime in the United States

The backstory:

Statistica refers to violent crime as offenses involving the use or threat of force, including murder, manslaughter, rape or sexual battery, robbery and aggravated assault. Their research says the United States still holds the top spot in the world for most prisoners worldwide. 

By the numbers:

In 2024, data collected by the Center for Disease Control showed the number of deaths from homicide were at 20,162, and 15,364 of those were from use of a firearm. 

According to statistics from the Council of State Governments Justice Center, only 44% of violent crimes reported to law enforcement result in an arrest. The percentages do vary widely by offense type, with homicide much higher than sexual assault and aggravated assault. 

However, recent data that examined crime trends in 30 U.S. cities found homicides have dropped sharply in the first half of 2026, part of a year-by-year decrease in the past decade. 

Despite the encouraging numbers, researchers cautioned that crime remains uneven across neighborhoods and that some cities still continue to struggle with persistent violence. 


 

The Source: This story was written with information provided by the Vera Institute, Statistica, the Council of State Governments, the Council on Criminal Justice and the Center for Disease Control. This story was reported from Orlando.

Crime and Public Safety