Where can Massachusetts municipal police execute an arrest warrant?

Massachusetts municipal police have the authority to execute an arrest warrant anywhere within the commonwealth of Massachusetts. This is based on the principle that once an arrest warrant is issued by a court, it grants law enforcement officers the jurisdiction to carry out the arrest regardless of the specific location within the state. This broad authority ensures that police can effectively apprehend individuals who may move outside their immediate municipal boundaries.

The other choices suggest limitations that do not align with the statutory powers granted to police officers in Massachusetts. For example, restricting the execution of an arrest warrant solely to within city limits or only in their jurisdiction would hinder the ability to apprehend suspects fleeing from justice. Additionally, the suggestion that police can only execute warrants when on duty does not reflect the operational realities where officers might be called to action outside regular hours, as long as they are acting under the authority of the warrant.