SEATTLE (AP) — New findings from an Oakland-based nonprofit that spent recent months analyzing Seattle’s 911 calls say up to half the calls Seattle police receive can be responded to without armed, sworn officers.

Police, who have been generally supportive of the findings, say they have questions about how realistic that number is.

The report is a result of part of Mayor Jenny Durkan’s plan to reimagine policing in Seattle.

The National Institute for Criminal Justice Reform found at some point in the future, an “alternative, non-sworn response” could be appropriate for up to 49% of Seattle Police calls.