Chicago has had an unusually high number of murders this year, so police are trying an unorthodox method of deterring crime.
Chicago police are using a so-called "heat list" to drop by the homes of people, unannounced, and warn them not to commit crimes.
Over 400 people are on the list and have been classified by police to likely commit a crime or be a victim, notes the Chicago Tribune.
Chicago police claim they are using statistical analysis via computer to target future criminals and victims of shootings.
The officers visit the homes of the people listed, warn them of consequences and offer help in getting a job or contacting social services.
The "Two Degrees of Association" effort is paid for by a grant from the National Institute of Justice.
Two Degrees of Association is based on the research of Andrew Papachristos, an associate professor of sociology at Yale University, who claims that future murder victims and murderers in certain areas of Chicago have arrest records, have been victims of past shootings and have friends who were arrested and shot.
"If you hang around people who are getting shot, even if you're not actively doing anything, then you become exposed. It's just like sharing needles. It puts you at risk because of the behaviors of your friends and your associates," said Papachristos.
Source: Chicago Tribune