Jurors on Thursday viewed images of sex toys resembling those allegedly purchased by Winfield and used in trysts with the student, who was between 11 and 13 years old when he claims he engaged in regular sexual activity with Winfield between 2016 and 2018.

Winfield denies the charges. The News does not identify alleged survivors of sexual assault.

During Thursday’s testimony in Alpena’s 26th Circuit Court, Alpena County Prosecutor Cynthia Muszynski showed jurors a calendar displaying the dates of 15 Alpena hotel room reservations in a four-month span.

Receipts and credit card information indicate Winfield booked the rooms, according to Trooper Robert Mitchell of the Michigan State Police-Alpena Post.

News Photo by Julie Riddle Defense attorneys flank former Alpena Public Schools teacher Heather Winfield, second from right, on Thursday in Alpena’s 26th Circuit Court as Alpena County Prosecutor Cynthia Muszynski, not shown, displays a calendar showing dates Winfield is alleged to have reserved local hotel rooms for sexual trysts with a former student.

The hotel reservations, in early 2017, followed the onset of a police investigation of Winfield after a girl showed officials at Thunder Bay Junior High School in Alpena suspicious social media messages allegedly between Winfield and the student.

Winfield, a special education teacher at the school, resigned. Police later closed that case without charging Winfield with anything.

The alleged victim testified that he and Winfield visited the hotels for sex because they were under a no-contact order during the investigation and couldn’t be together in her house, where he said they engaged in sex hundreds of times.

Winfield told police she didn’t see the student during the months of the hotel stays, according to Mitchell.

Muszynski showed the jury photos of sex toys listed on adult novelty store receipts linked to Winfield’s credit history. The items matched detailed descriptions of sex toys the alleged victim testified Winfield purchased and used when she was with him.

News Photo by Julie Riddle Defense attorney Alan Curtis, left, shows a printout of social media messages to Bonnie McKenzie in Alpena’s 26th Circuit Court on Thursday.

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A digital analyst, on the stand for the prosecution, said she found a deleted entry on Winfield’s electronic calendar for July 2, 2016, along with a social media message allegedly written by Winfield in which she called the date one of the highlights of her life.

The alleged victim testified that date was the first time the two had sex. The calendar entry consisted only of the alleged victim’s first and middle name, which he claimed she used as a nickname for his private parts.

About 4 p.m. Thursday, after seven days of testimony, the prosecution rested its case. After Judge Roy Hayes dismissed the jury, attorneys took up another argument, that of the admission of potentially damning messages introduced by the defense as surprise evidence on Wednesday.

In the social media messages, a witness appears to admit he lied when he said he saw Winfield and the alleged victim having sex on Winfield’s basement floor.

Bonnie McKenzie, Winfield’s mother, insisted she be allowed to testify that she supplied screenshots of the messages to attorneys.

The testimony came despite firm warnings from Muszynski that the mother faced up to two years in prison for the admission because accessing messages on someone else’s phone without permission is a crime.

“If she wants to arrest me, go for it,” McKenzie said. “I didn’t do anything wrong.”

The messages came from a phone purchased by Winfield for the alleged victim. The mother said she found the messages on the phone when police returned it to Winfield after they searched it as part of their investigation.

The messages were part of “dozens and dozens” of conversations filled with “nasty stuff,” including drugs and violence, between the alleged victim and his friends, McKenzie told the judge.

Because portions of the conversation are missing, preventing the absolute identification of the people involved, the evidence may not be admitted, despite McKenzie’s testimony, Hayes said, giving defense attorneys until the morning to produce further proof of its authenticity.

Originally scheduled to end today, the trial will last at least until Monday. The defense will call its first witness this morning from among a list of 16 potential witnesses.

This story was modified to indicate that the prosecution rested its case at the end of Thursday’s testimony. That information was incorrect in a previous version of the story.