▁best ." ▁ ▁Police ▁use ▁of ▁force ▁on ▁ment ally ▁ill ▁individuals ▁Another ▁dimension ▁of ▁police ▁work ▁receiving ▁scr ut iny ▁in ▁the ▁ 2 0 1 0 s ▁is ▁the ▁interactions ▁between ▁police ▁officers ▁and ▁individuals ▁with ▁mental ▁ill ness . ▁" Tw enty - five ▁percent ▁or ▁more ▁of ▁people ▁fat ally ▁shot ▁by ▁the ▁police ▁have ▁had ▁a ▁mental ▁dis order , ▁according ▁to ▁various ▁anal ys es ." ▁Exper ts ▁in ▁criminal ▁justice ▁say ▁that ▁fund ing ▁for ▁mental ▁health ▁services ▁in ▁many ▁parts ▁of ▁the ▁country ▁is ▁ins u fficient , ▁so ▁police ▁are ▁likely ▁to ▁encounter ▁ment ally ▁ill ▁people . ▁In ▁response ▁to ▁negative ▁re actions ▁from ▁the ▁public ▁to ▁high - profile ▁violent ▁interactions ▁between ▁police ▁and ▁ment ally ▁ill ▁individuals , ▁some ▁police ▁depart ments ▁are ▁increasing ▁their ▁special ized ▁training ▁and ▁changing ▁their ▁tact ics ▁for ▁their ▁interactions ▁with ▁ment ally ▁ill ▁people . ▁For ▁example , ▁all ▁officers ▁in ▁Port land , ▁Oregon ▁receive ▁ 4 0 ▁hours ▁of ▁" c ris is ▁inter vention ▁training ". ▁Offic ers ▁in ▁some ▁depart ments ▁may ▁special ize ▁in ▁this ▁type ▁of ▁work , ▁similar ▁to ▁how ▁other ▁officers ▁special ize ▁in ▁SW AT , ▁n arc ot ics , ▁or ▁K - 9 . ▁ ▁Reform ▁of ▁law ▁enfor cement ▁ag encies ▁with ▁other ▁forms ▁of ▁mis con duct ▁ ▁Oak land , ▁California ▁Police ▁Department ▁The ▁Oak land , ▁California ▁Police ▁Department ▁had ▁three ▁police ▁chief s ▁in ▁nine ▁days ▁amid ▁revel