550 CMR 6.09
Investigation When Use of Force Results in a Death or Serious Bodily Injury
Law enforcement agencies shall develop and implement a policy and procedure for reporting
a use of force that results in a death or serious bodily injury.
Whenever an officer uses force that results in a death or serious bodily injury, the
Officer-in-charge shall immediately notify the agency head or their designee. The agency shall
conduct an investigation according to their policies and protocols.
If the use of force involved a weapon, the agency head or their designee shall secure the
weapon or weapons used for examination and maintain the appropriate chain of custody
protocols.