Lynch

We granted the Commonwealth’s application for further appellate review to consider the question of the petitioner’s right to statutory good time credits (see G. L. c. 127, § 129) against certain sentences. The facts in this case are set out in the opinion of the Appeals Court, Lynch, petitioner, 7 Mass. App. Ct. 529, 530-531 (1979). We must consider two questions: (1) whether the petitioner must forgo any statutory good conduct deductions which might have been earned against his eighteen-to-twenty-year sentences during the approximately two years he concurrently served an unrelated sentence,…