The report, commissioned by the group and released Monday, lays bare just how much overlap exists between jails and the streets and how little is done to prevent a return to either.

Its release comes on the heels of a Crosscut report last week that showed one of every five bookings by the Seattle Police Department in 2018 was of someone struggling with homelessness.

“Seattle’s criminal justice system is broken,” concludes the report, written by Scott Lindsay, a onetime public safety adviser to former Mayor Ed Murray and former candidate for city attorney. “By any measurement of effectiveness — protection of public safety, reducing recidivism, fair treatment of defendants, addressing underlying root causes of problem behavior, timely resolution of cases, reducing incarceration or efficient stewardship of public dollars — the way Seattle’s criminal justice system responds to individuals who frequently commit crime is not working.”

The report, titled “System Failure: Report on Prolific Offenders in Seattle’s Criminal Justice System,” was conducted in order to better understand public safety concerns in Chinatown-International District, the University District, SoDo, Ballard and Pioneer Square.

But what may have begun as a look into public safety morphed into an indictment of the criminal justice system, as it pertains to the city’s homeless population.

The picture it paints is one in which people repeatedly cycle between jail and homelessness, with very little done to prevent returns to either. According to the report, addiction is at the root of almost all of the offenses — be they shoplifting, theft or even assault. Issues are exacerbated by missed court hearings or check-ins, as well as breaking conditions of parole, which leads to warrants and can trigger other factors that increase the likelihood of another arrest.

“If you’re going to break that cycle you have to coordinate not only with the jail and police, but also with services,” Don Blakeney, vice president of advocacy with the Downtown Seattle Association. “And right now there are so many gaps between all of that we’re seeing what we’re seeing in this report today.”

Last week, Crosscut looked at the proportion of all bookings by the Seattle Police Department in 2018 involving people struggling with homelessness. Lindsay’s report, on the other hand, chose a sample of 100 “prolific offenders” — people who had been booked into jail at least four times in a year.

Of the 100 people Lindsay selected who fit this profile, all struggled with both homelessness and addiction. At the same time, at least 38 reported struggles with mental illness, although the number is likely higher.

“While each individual circumstance and story differed, it is significant to understand that chronic homelessness is universal or near-universal for those with the greatest involvement in the criminal justice system,” concludes the report. “This is also important because the criminal justice system provides little support in addressing underlying homelessness.”

The offenses that landed the individuals in court and jail almost always related directly to addiction. Lindsay concluded that all 100 people he profiled struggled with various forms of substance use. Trespassing, burglary, theft, robbery, false reporting, narcotic possession, even assault — all in some way related to the need to purchase drugs.

For example, one individual who had 27 criminal cases in two years was recently arrested for theft at the QFC on Capitol Hill. The theft was in support of a $150-a-day heroin and methamphetamine habit.

The workings of the criminal justice system tended to exacerbate the original offenses, Lindsay found. Of the requirements associated with an arrest — reporting to a court hearing or complying with certain conditions on release — all 100 failed at some aspect, usually resulting in a warrant.

Having a warrant all but guarantees any additional interaction with law enforcement will result in another arrest.

“The result is often cases that dragged out for more than a year with the court issuing multiple bench warrants,” the report says.

Lindsay also found that defendants were released from jail at midnight about 30 percent of the time. “The result is to place a homeless person back out into the street at a time when almost all night shelters stop admitting new clients and transit services are limited,” Lindsay writes.