Brock Turner
Brock Turner pictured with what is alleged to be a hash pipe

Stanford campus rapist Brock Turner allegedly lied about his experience with drugs and alcohol with prosecution evidence alleging the former varsity swimmer experimented with class A drugs and referenced mixing MDMA and acid.

Turner, who was found guilty of sexually assaulting an unconscious woman outside a party at the university's Palo Alto campus in California, reportedly told the judge at his trial he had been affected by alcohol, which he was not used to.

"Coming from a small town in Ohio, I had never really experienced celebrating or partying that involved alcohol," he was reported as saying in court by Mercury News.

"Living more than 2,000miles from home, I looked to the guys on my swim team as family and tried to replicate their values in how they approached college life."

But it was reported a prosecution memo showed Turner had texted friends about his drug use, suggesting he took cannabis, acid and MDMA.

In pictures taken from Turner's mobile phone, also seen by the judge prior to Turner's sentencing, the former Stanford student can be seen with what appears to be a hash pipe and in another image appears to have taken a video of a large bong.

In one text, a friend tells Turner he intends to buy acid, to which Turner responded: "I'm down for sure," while in another text, Turner says: "Do you think I could buy some wax so we could do some dabs?" referencing concentrated hash oil that gives a strong hit of THC (Tetrahydrocannabinol).

Brock Turner
Turner denied having any experience of the party scene

Turner also received a text from a friend about mixing MDMA and acid, known as "candy flipping", to which Turner replied: "I gotta ******* try that. I heard it's awesome."

The texts, which were sent more than a month before Turner assaulted the woman at a campus party, are in contrast to the picture presented by his defence of a student who was new to the party lifestyle and was not used to drinking alcohol.

In a victim impact statement that has been widely shared, the woman assaulted by Turner states: "You said, 'I stupidly thought it was ok for me to do what everyone around me was doing, which was drinking. I was wrong.'

"Again, you were not wrong for drinking. Everyone around you was not sexually assaulting me.

Brock Turner
Brock Turner's January 2015 arrest mugshotSanta Clara County Sheriff's Office

"You were wrong for doing what nobody else was doing, which was pushing your erect dick in your pants against my naked, defenseless [sic] body concealed in a dark area, where partygoers could no longer see or protect me, and own my sister could not find me.

"Sipping fireball is not your crime. Peeling off and discarding my underwear like a candy wrapper to insert your finger into my body, is where you went wrong. Why am I still explaining this?"

Turner was sentenced to six months in a county jail – a sentence that has been criticised for its leniency, as the crime carries a maximum sentence of 14 years in prison.