Brock Turner , a former Stanford University student, sparked nationwide outrage last year when he received a jail sentence of just six months after being convicted for sexually assaulting an unconscious, intoxicated woman beside a dumpster.

Now, Turner is appealing.

In a brief filed Friday to Californias 6th District Court of Appeal, Turners lawyers contend that the trial was a detailed and lengthy set of lies, The Associated Press reported .

Turners relatively light sentence he could have faced up to 14 years in prison came after he was convicted on three felony sexual assault charges in March 2016. He was released after three months .

His lawyers hope to reduce Turners obligation to register as a sex offender for life. The lawyers brief also criticizes Judge Aaron Persky for not instructing jurors to consider lesser charges and for excluding character witness testimony that might have been favorable to Turner, the San Jose Mercury News reported .

Turner, a swimmer who had hoped to compete in the Olympics, was arrested in 2015 for sexually assaulting a woman outside a fraternity party, having been caught by two graduate students riding their bikes past the scene. Turner, who was 19 at the time, claimed the woman referred to as Emily Doe throughout the trial had consented to the sexual encounter.

In their appeal, Turners lawyers also objected to the way Deputy District Attorney Alaleh Kianerci referred to the incident. By saying it occurred behind a dumpster, the brief argues , Kianerci implied moral depravity, callousness, and culpability on the appellants part because of the inherent connotations of filth, garbage, detritus and criminal activity frequently generally associated with dumpsters.

While Emily Does position might have been obscured from certain angles behind the trash bin, the graduate students who found her approached from a different angle, where they could see her.

Emily Doe was found partially clothed, with a blood alcohol level three times the legal limit. She had reportedly been unconscious for three hours.

A poignant, 7,200-word letter she wrote to Turner and read aloud in court captured national attention when it was published by BuzzFeed . CNN s Ashleigh Banfield read the letter in full on the air , and 18 members of Congress read it on the House floor .

The case highlighted an epidemic of campus sexual assault and lenient sexual violence policies at colleges including Stanford .

Brock Turner received a fair trial and was justly convicted, Santa Clara County District Attorney Jeff Rosen told the Mercury News. His conviction will be upheld. Nothing can ever roll back Emily Does legacy of raising the worlds awareness about sexual assault.