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My search as a cop for justice in a flawed criminal system

A faulty reliance on eyewitnesses and shoddy science at police departments across the states, from the LAPD to the NYPD, can have tragic consequences.

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Within moments, my partner had stopped three kids who he believed had shot the victim. Our victim emphatically stated that these suspects were not the shooters. The victim's cousin, who was present during the shooting, insisted that the three were the shooters. Whom could we believe? Absent a video or other clinching evidence, how could we be certain that we were making the right decision?

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Another example: A victim of an assault with a deadly weapon in my division identified the criminal. When my officers and sergeants went to arrest the suspect, he, in common with almost everyone, proclaimed his innocence. My officers spent considerable time checking the alibi of the suspect and finally determined that a video at his work established that he was indeed innocent. What if there had been no video to confirm his alibi?

Our criminal justice system would fail without eyewitness assistance to try and convict criminals. Yet numerous scientific studies have shown that even the most well-intentioned eyewitnesses can identify the wrong person or fail to identify the perpetrator of a crime.

Aside from the fallibility of eyewitnesses, our political model of control over the police can lead to inadvertent mistakes. Municipal police departments dance to the tune of their political masters who thrive on the constant drumbeat of "tough on crime" rhetoric. The only evidence that police can measure to tout our tough-on-crime rhetoric is increasing the number of arrests and reducing crime rates.

This pressure to be productive, the lack of personnel and time, and the desire to wrap up an incident, combined with the unreliability of eyewitnesses, increases the odds that an innocent person may be arrested, or worse, convicted. Add to this our system that rates prosecutorial performance on conviction rates and we are on a slippery slope. And when corrupt prosecutors who present false evidence, even in death penalty cases, such as the now disbarred Arizona prosecutor Kenneth Peasley, enter the mix, only God can save the innocent.

As the Texas father's case proves, sometimes what amounts to voodoo passes for scientific analysis of crime scenes. That the agencies which take part in prosecution and conviction (police, fire, district attorneys) consider anything less than scientific analysis should be considered malpractice.

Police departments across the country need to establish standardized tough, scientifically accurate procedures for evidence collection and analysis. Without that, innocent individuals will continue to be wrongly jailed because of an unwitting and erroneous eyewitness or an overzealous but scientifically illiterate investigator. As error-prone humans, we can't guarantee a fail-safe criminal justice system; therefore, to be truly just we must abolish capital punishment.

We need to move away from number-based evaluation of police departments' productivity and increasing reliance on crime statistics to measure police success.

It should also be mandated that all police contacts be recorded on video. And when a case for prosecution is built solely on eyewitnesses or informants, it should go through enhanced scrutiny by the judicial branch. The benchmark should be a nationwide standardization of policies on evidence collection and analysis.

The success of police agencies should be evaluated based upon satisfaction of the communities they serve. Such satisfaction surveys should be conducted by independent external entities. As procedures for police training and evidence collection and analysis already exist and only need to be streamlined and improved, none of the proposed solutions entail major financial expenditure or rely on political process, ensuring a quicker implementation. This will help create a truly just criminal justice system in our country.

Sunil Dutta, PhD, is a lieutenant in the Los Angeles Police Department. The views expressed here are his own.