Commonwealth v. a Juvenile

This is an appeal pursuant to G. L. c. 278, § 33B, following a Superior Court jury verdict that the appellant, a juvenile, is a delinquent by reason of manslaughter. The facts are essentially those recited in our previous decision in this case.1

*423Six grounds for reversal were argued. We will deal first with the issues surrounding the trial judge’s denial of the juvenile’s pre-trial motions for the admission of polygraph, or “lie detector” test results. From the record it is clear that substantial advances have been made in the field of polygraphy since we rejected the admission of such evidence…