Thе only exception now relied on by the defendant is to the admission in evidence of the defendant’s rule in regard to sounding the gong, in'connection with testimony that the defendant’s motorman disobeyed the rulе and that this disobedience was one of the causes of the accident. The decisions in different jurisdictions are not entirely harmonious upon the question now raised, but we are of opinion that the weight of authority and of reason tends to support the ruling of the judge in the present case.
It has bеen settled by various adjudications in this Commonwealth that the adoption of additional precаutions for safety by a defendant, after an accident, cannot be proved, as tending to show liаbility for the method used at the time of the accident. Menard v. Boston & Maine Railroad, 150 Mass. 386. Shinners v. Proprietors of Locks & Canals,
On the other hand, a violation of rules previоusly adopted by a defendant in reference to the safety of third persons has generally beеn admitted in evidence as tending to show negligence of the defendant’s disobedient servant for which the defendant is liable. The admissibility of such evidence has often been assumed by this court without discussion. Mayo v. Boston & Maine Railroad,
It is contended by the defendant that there is no sound principle under which such evidence can be admitted. The evidence is somewhat analogous to proof of the violation of an ordinance or statute by the defendant or his servant, which is always received as evidence, although not conclusive, of the defendant’s negligence. Wright v. Malden & Melrose Railroad,
A distinction may well be made between precautions taken voluntarily before an accident, and precautions which are suggested and adopted after an aсcident. This distinction is pointed out in Columbia & Puget Sound Railroad v. Hawthorne,
^Exceptions overruled.
