This test for the National Institute of Justice hypothesized that police can increase felony convictions by improving the quality and availability of evidence transferred to the prosecutor. The test sites were Garden Grove/Orange County, California; Indianapolis/Marion County, Indiana; and Newport News, Virginia. Project tasks included examining the value of police pre-screening felony arrests, developing arrest conviction standards, training police in the new standards and in new ways of collecting and presenting evidence, and using arrest conviction as a measure of police performance.