Former Belknap County sheriff’s deputy Ernest Justin Blanchette appears at his trial in Hillsborough County Superior Court North in Manchester on Thursday, April 28, 2016. Blanchette is accused of raping a female inmate en route to prison last summer. (ELIZABETH FRANTZ / Monitor staff)
Former Belknap County sheriff’s deputy Ernest Justin Blanchette appears at his trial in Hillsborough County Superior Court North in Manchester on Thursday, April 28, 2016. Blanchette is accused of raping a female inmate en route to prison last summer. (ELIZABETH FRANTZ / Monitor staff)

 

The attorney for a former deputy sheriff found guilty of sexually assaulting an inmate while transporting her from a county courthouse to prison is asking New Hampshire’s highest court to overturn the conviction.

Attorney Brad Davis filed an appeal with the state Supreme Court following Ernest Justin Blanchette’s April conviction.

Blanchette was sentenced to 10 to 20 years in prison. He faces several indictments for similar allegations.

His lawyer says there were multiple errors during the former Belknap County deputy sheriff’s trial, including evidence that Davis says shouldn’t have been allowed in court.

Davis also says Blanchette didn’t directly supervise the inmate, who had been incarcerated at the New Hampshire State Prison for Women in Goffstown.