¶1This action of tort for personal injuries arising from a motor vehicle collision was tried on a transfer from the Superior Court under G. L. c. 231, § 102C, before a judge of the Municipal Court of the City of Boston, who found for each of two defendants. The case was retrans-ferred to the Superior Court and was tried there to a jury. After the return of the verdicts the judge declared a mistrial. Subsequently, the count against the other defendant being waived, the case was again tried to a jury, who found for the plaintiff. The defendant excepted to the refusal of the trial judge in the second jury trial to allow the introduction in evidence of the finding of the Municipal Court. This was error. Under G. L. c. 231, § 102C, the decision *439“of ... a district court shall be prima facie evidence upon such matters as are put in issue by the pleadings . . ..” The applicability of the statute was not affected by the prior trial in the Superior Court which ended in a mistrial.
¶2Exceptions sustained.