5
671, 677 (1979). We grant particular deference "to findings
resting upon expert testimony." Husband, supra at 4. Indeed,
under Massachusetts law, "qualified examiners are central to the
statutory scheme designed to evaluate the likelihood of a sex
offender to reoffend." Johnstone, petitioner, 453 Mass. 544,
551 (2009), quoting Commonwealth v. Bradway, 62 Mass. App. Ct.
280, 283-284 (2004).
Here, the Commonwealth offered extensive evidence of the
defendant's current sexual dangerousness, centered around the
opinions of the two qualified examiners. Both of those experts
opined, based on the defendant's criminal history, his patterns
of behavioral infractions while incarcerated, his mental
diagnoses, his insufficient engagement in treatment, and other
evidence, that the defendant currently meets the statutory
definition of a sexually dangerous person. Notably, there was
no challenge to the qualifications of either expert at trial.
Nor did the defendant raise an objection to the expert testimony
seeking to have it excluded on reliability grounds. See
Commonwealth v. Shanley, 455 Mass. 752, 761-762 (2010).
The evidence the experts cited in support of their opinions
was compelling. The defendant's criminal history, beginning in
1968, includes multiple convictions for indecent exposure,
dissemination of obscene material, enticing a child, and
multiple counts of rape of a child. As referenced above, he was