As The Telegraph reports, Emily Bowen, now 18, poured drain cleaner into a viola case owned by Molly Young in September 2016. Both girls were 17 at the time.

Young pulled her viola case off a shelf from a music room at Knox Academy, in East Lothian, and the liquid spilt over her legs.

A court heard the acid burned through the victim’s clothes and onto her skin, leaving her “screaming in pain”. They also were told the young woman suffers from “shooting pain and nerve damage”.

As news.com.au reports, Bowen had researched acid attacks online after she heard that Molly had started seeing her former boyfriend.

Sheriff Michael O’Grady QC sentenced Bowen to 21 months imprisonment, describing the attack as “utterly wicked”.

“You researched this topic and should have been aware of the potentially horrendous consequences for any young woman maimed by this,” he told Bowen.

“You have left a young woman to suffer a terrifying ordeal and she will be both physically and mentally scarred for the rest of her life.”

Bowen’s defence solicitor, Jim Stephenson, had argued Ms Bowen had been diagnosed with autism and depression.