A small number of prosecutors accounted for a disproportionate share of improper-conduct rulings

Each of these 13 prosecutors had more than one ruling between 2018 and 2021 where appeals courts found improper conduct or mistakes.

13 prosecutors out of 109 total ...

... worked on 30 of the 104 cases where improper conduct was found.

Notes:

More than one prosecutor may be on each case. Columbia Journalism Investigations was not able to confirm the trial prosecutors involved in four cases.