Investigator's affidavit: Scott Walker put his hand up the trainee's shorts and underwear, touching his genitals, and penetrating the trainee while Walker was working an off-duty job in Lakeland.

BARTOW — Polk County deputies arrested Scott Walker, a 19-year veteran of the department, under an allegation he committed sexual battery and falsely imprisoned a deputy in training.

According to a Polk County Sheriff's Office investigator's affidavit, Walker, 39, put his hand up the trainee's shorts and underwear, touching his genitals, and penetrating the trainee while Walker was working an off-duty job in Lakeland.

The trainee told the investigator he was there to get help from Walker on writing reports and studying: Walker was a training coordinator with the agency.

After the work was finished, Walker said the trainee “owed” him oral sex, the trainee reported. The trainee said he ignored the comment.

Soon after, Walker began touching the trainee.

The trainee told the investigator he began telling Walker “no” and trying to move away, that Walker tried to take away the trainee's laptop, and pushed the chair he was in against the wall. That's when Walker left to lock the door and then came back with his pants partially down, according to the deputy in training.

Because Walker was armed and locked the door to the building, the investigator said Walker created in the trainee a “well-founded fear for his own safety.”

“These crimes are enhanced by the fact that Walker is employed as a deputy sheriff and Walker's position as a training coordinator made the victim believe that he had the influence and authority over his career,” the investigator wrote.

Walked denied the allegations in an interview, the investigator reported, saying that he had instead “tapped” the trainee on his penis outside of his clothing as a joke, but later used the word “grabbed” to describe the incident.

The trainee and Walker had previously communicated through Snapchat, which the trainee and investigators said they were able to record as evidence.

During those conversations, Walker wrote that he was “just 'messing' around with ya. Chill out. Knock gonna knock you in head a sexually batter u.”

By the end of the exchange, Walker seemed to express concern about the nature of the conversation, asking at one point, “Dude. R u really by yourself.”

The Polk County Sheriff's Office said Walker was arrested without incident and resigned from his position.