Document Clearance rate in Tennessee's largest cities View

Chattanooga's police department cleared just over 12 percent of reported offenses in 2015, according to a TBI report. That's the lowest proportion of cleared cases of any of Tennessee's major cities.

For comparison, Memphis had a 25 percent clearance rate, Knoxville cleared 49 percent of offenses, and Nashville cleared 41 percent of reported offenses.

Clearance numbers change constantly as more arrests are made following a reported offense, and Chattanooga's 2015 clearance rate will likely edge higher as records are amended, officials said. Additionally, cleared cases are recorded for the year in which the crime happened. So if a person is arrested in 2015 or a crime that occurred the previous year, the clearance will not be included in the 2015 count.

Chattanooga chalked up 21,465 total reported offenses in the TBI report, but has only recorded 2,610 cleared cases as of the report's publication.

The TBI reported that Chattanooga Police arrested a total of 3,676 people during the year, including the arrests of 135 juveniles.