The push by Lindsay Clancy’s lawyer to investigate the lone holdout juror who forced a mistrial in her triple-murder case has been stopped in its tracks by the judge.

Clancy’s defense attorney, Kevin Reddington, had asked for an evidentiary hearing at an upcoming Nov. 2 court date to call witnesses to speak about accusations that Michael P. Desronvil lied on his jury questionnaire and used his cellphone during deliberations.

However, Judge William F. Sullivan wasn’t having it, and ruled Wednesday that the mistrial must only be evaluated based on the circumstances known at the time — not allegations after the mistrial.

Attorney Kevin Reddington listens to the commonwealth respond to Reddington’s motion for dismissal during a court appearance for Lindsay Clancy in Plymouth, Massachusetts, Tuesday, September 29, 2026. via REUTERS

Michael Desronvil, the lone holdout juror in the Lindsay Clancy murder trial. Fox News

Additionally, Sullivan ruled that digging further into the juror’s reasoning or the jury’s internal deliberations would be inappropriate under state law.

The defense was trying to prove juror misconduct to argue that the mistrial wasn’t a “manifest necessity,” a key legal avenue to try to stop prosecutors from retrying Clancy under double jeopardy protections.

While the judge blocked the request to call live witnesses or examine the holdout juror, Clancy’s motion to dismiss the charges remains pending and will be argued in court on Nov. 2.

Judge William Sullivan listens to an argument by Kevin Reddington on a motion to dismiss the case against Lindsay Clancy in Plymouth, Massachusetts. via REUTERS

The 36-year-old Duxbury mom is accused of strangling her three young children — Cora, 5, Dawson, 3, and 8-month-old Callan — inside their home in January 2023 before jumping out a second-story window in a sᩚuᩚiᩚcide attempt.

She was partially paralyzed in the fall.

Clancy defense attorney Reddington didn’t dispute the murders, and instead centered their defense on her severe mєntal illness and postpartum psychosis.

Lindsay Clancy is brought into the Plymouth Superior Court on Feb. 20, 2026. USA TODAY Network via Reuters Connect

But prosecutors claimed Clancy – a former labor and delivery nurse – carefully planned and carried out the horrific acts.

After trial, several jurors came forward and revealed that 11 of the 12-person panel, made up of nine women and three men, were prepared to find her not guilty by reason of insanity.

Desronvil was the only juror who wanted to convict Clancy on the three first-degree murder charges she faced.

He has claimed he didn’t have any doubt about her guilt – in the wake of other jurors accusing him of voicing doubts but refusing to find her not criminally responsible.

Prosecutors still haven’t confirmed whether they plan to retry Clancy on the same charges. They could also seek to downgrade the charges, drop them altogether or try to hash out a deal with her legal team.

Either way, Sullivan said he hopes to nail down a trial date at the Nov. 2 hearing.

Reddington didn’t immediately return The Post’s request for comment.