Massachusetts Just Removed a Deadline That Kept DNA Matches From Reaching Court

Reviewed by Survivor Rights Center · Updated 2026-07-25

The problem the old law created

Before this change, Massachusetts generally barred rape prosecutions once 15 years had passed since the offense, regardless of what new evidence turned up later. That put the state well outside the national norm; reporting on the change notes dozens of other states allow prosecutors more time than Massachusetts did. The gap mattered most in cases where a rape kit sat untested for years and a DNA match only surfaced after the clock had already run out.

Legislators had introduced versions of this fix repeatedly going back more than a decade, but earlier attempts stalled amid concerns from defense advocates about prosecuting very old cases. The version that ultimately passed was attached to the state's annual budget process rather than moving as a standalone criminal-justice bill.

What the new DNA-evidence law actually changes

Under the new law, if a DNA match identifies a suspect in a rape case after the previous 15-year window has closed, prosecutors can still bring charges rather than being automatically barred. If a match is found while the original 15-year period is still open, that ordinary deadline still applies going forward; the change specifically targets cases where forensic science catches up to a case years after the fact.

A related provision requires law enforcement to preserve sexual-assault evidence collection kits for at least 15 years, addressing a separate problem where kits were sometimes destroyed or lost before testing technology or lab backlogs caught up to them.

The companion 'abuse of power' provision

Alongside the DNA measure, the law adds a second protection aimed at authority figures rather than evidence timelines. Where the adult oversees or has responsibility for the minor in some official role, the minor's agreement can no longer be raised as a defense, closing a gap that previously let some adults in positions like coaching or teaching argue a 16- or 17-year-old had agreed to the encounter.

Penalties run as high as 20 years in prison for a rape conviction under these circumstances, with a separate maximum of 10 years when the charge is indecent assault and battery instead, treating the abuse of a position of trust as an aggravating factor rather than leaving it to be argued case by case.

Why the timing and packaging matter

Both provisions were signed as part of the state's fiscal year 2027 budget, a common vehicle in Massachusetts for policy riders that might otherwise take longer to pass as standalone bills. A public bill-signing event held afterward specifically highlighted both measures, underscoring that lawmakers saw them as substantive criminal-justice changes rather than routine budget language.

For survivors, the practical effect is narrow but real: cases that would have been legally dead on arrival once a DNA match came in late now have a path to prosecution, and cases involving a minor and an authority figure no longer turn on a disputed consent argument.

What the New Massachusetts Law Covers

Two related but distinct protections were signed together. Here is what each one does.

1. Late DNA matches can now reach court: Prosecutors are no longer automatically barred from charging a rape case once a DNA match identifies a suspect after the old 15-year deadline.
2. The ordinary deadline still applies otherwise: If a DNA match comes in while the standard window is still open, the usual timeline continues to govern the case.
3. Evidence kits must be kept longer: Law enforcement must now preserve sexual-assault evidence collection kits for a minimum of 15 years.
4. Consent is no longer a defense with an authority figure: When the adult oversees or has custody of the minor in an official role, that minor's agreement can no longer be used to defend the conduct in court.
5. Coaches, teachers, and similar roles are covered: The authority-figure provision is aimed squarely at mandated reporters and other adults in positions of trust over minors.
6. Sentencing reflects the abuse of trust: A rape conviction under this provision can draw as much as 20 years, while the lesser charge of indecent assault and battery tops out at 10.
7. Both measures moved through the state budget: Rather than standalone bills, both provisions were enacted as part of the annual fiscal year 2027 budget process.

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