Starting next February, Minnesota law enforcement must begin using science-based practices for photo lineups designed to safeguard against the fallibility of human memory.
Gov. Tim Walz signed a bipartisan measure this weekend mandating the new statewide eyewitness identification model, which lawmakers and criminal-justice-reform advocates say will reduce the chances of a wrongful conviction.
"At no time should an innocent person go to prison," said co-author Sen. Bill Ingebrigtsen, R-Alexandria, in a statement. "This is just another tool that will help keep that from ever happening. As a former sheriff, I am proud to be part of this initiative."
Across the country, mistaken eyewitness identifications account for 71% of wrongful convictions later overturned by DNA, according to nonprofit law firm the Innocence Project, which helped write the proposal.
The new mandatory practices include using a "double-blind" method, meaning the investigator conducting the procedure does not know which photo depicts the suspect, and therefore can't unintentionally signal toward one image. For smaller agencies when this isn't possible, the officers can administer the lineup in a way that prevents them from seeing the photos.
Police must also instruct the witnesses that the suspect may or may not be present in the lineup, a measure to avoid a witness choosing the wrong but closest resemblance.
The officers needs to use nonsuspect fillers who match the general description of the suspect.
And investigators are required to record a witness' confidence level promptly after the identification is made.