The Massachusetts Peace Officer Standards and Training Commission (POST) said Thursday it will not investigate Boston Police Commissioner Michael Cox because he is a “civilian executive,” not a sworn law enforcement officer.

Defense Attorney Alan Jackson, who represented Karen Read during her murder trial, sent a letter to POST in October asking that Cox be investigated for dishonest conduct in the wake of that trial. Jackson claimed Cox was aware of his department’s entanglement in the Read case.

Kelly Dever, a former Boston police officer who worked for the Canton police department when John O’Keefe died, testified in Read’s second trial. Jackson alleged that Cox pressured Dever to change her testimony.

Jackson pointed to an email from the Boston FBI field office to Cox that mentions

See Full Page