At a preliminary arraignment Thursday, Hicks, 30, of Horsham, stood before District Judge John C. Tuten with her hands clasped behind her back as the charges were outlined.
She waived her preliminary hearing, and agreed to stay away from the school and not to contact any of the witnesses. She was released on $20,000 bail.
Hicks allegedly gave alcohol to three underage cadets and sexually assaulted a 16-year-old cadet while the two were alone in her office, according to court documents.
"The biggest concern that we have is that she was in a position of trust," said Delaware County Assistant District Attorney Michael R. Galantino. "Allegations like this raise a concern."
Her attorney, Richard Q. Hark, said his client acknowledged drinking with students but denied there was "any sexual conduct with any student at any time."
The cadet who made the allegations of inappropriate sexual contact has "severe long-standing disciplinary issues at the school," he said. The student had been caught drunk on campus, Hark said. The attorney contended that the student made up the sexual allegations against his client to deflect responsibility from his own behavior and to avoid expulsion.
On her Facebook page, Hicks wrote about her family and friends but also about drinking shots of alcohol and what her next tattoo might look like. There were also a number of exchanges with students that suggested she maintained a familiar relationship with them.
"I am ready to hang out with my seniors," Hicks wrote on her page at 4:18 p.m. Thursday, Oct. 27.
"Can we wear civies?" a student replied.
On Nov. 16 at 7:25 p.m., she wrote: "To all my students, Sorry for being a witch today. I will be better tomorrow i promise."
In another posting, she wrote: "First day that I actually did not enjoy work. Hopefully tomorrow will be better."
"awww its because i was not in the office right?" a student wrote back.
"Lol, probably," she replied.
On Nov. 27 at 3:18 p.m., Hicks asked a student: "Hey you! Will i see u tomorrow?"
A minute later the student replied: "Sure will! Hey can you do me a favor?" To which there was no reply.
The school was not aware of Hicks' postings on Facebook, said Jennifer Meyers, the school's spokeswoman.
The school's human resources department conducted a staff seminar on healthy boundaries for professionals working with students that included a segment on social media, she said. Hicks did attend the seminar, Meyers said.
Contact staff writer Mari A. Schaefer at 610-892-9149, mschaefer@phillynews.com, or @MariSchaefer on Twitter.