Table of contents
Ganga Siriwardhana, 51, has been jailed for drugging Chinese victims in Birmingham city centre
A Solihull businessman used a fake ID to arrange dates with university students - then drugged them in an attempt to lure them into sex.
Ganga Siriwardhana arranged separate dates with the women in Birmingham city centre in April and May last year, after speaking to them over Chinese social media.
The 51-year-old then spiked the drinks of the students - who were both from China - with clozapine which can lead to severe drowsiness.
But his attempts to drug the women were foiled by eagle-eyed members of the public, who became suspicious.
One of the women collapsed in a restaurant and other diners noticed as Siriwardhana tried to take her out.
Officers were called and concerns were raised after he appeared to have deliberately poured a drink onto the floor.
Despite claims it was an accident, officers sent the glass for forensic analysis where the presence of drugs were established.
Siriwardhana also spiked the drinks of another woman - just weeks later - but a member of the public saw her drowsy state and called police.
Officers attended but Siriwardhana had already driven off and the victim was taken to hospital.
Tests later confirmed she had been drugged and it was quickly established that Siriwardhana was responsible.
Siriwardhana, of Warwick Road, Solihull, and studying Chinese at the time denied charges of administering a noxious substance with intent to commit a sexual act.
He was convicted after a trial and jailed at Birmingham Crown Court last Friday (October 12).
DC Laurence Green, from force CID, said: "Drink spiking is illegal, regardless of whether an attack or assault is carried out afterwards. Victims can be left with a loss of control through absolutely no fault of their own.
"This was something that Siriwardhana was preying on to lure them into sex.
"I would like to thank the public who stepped in on both occasions when they saw what was happening and called us; their interventions were crucial in thwarting his main intentions.
"There may have been more Chinese women who were targeted by him and we would urge anyone else who may have been a victim to come forward and speak to us."
Anyone who believes that their drink has been spiked is urged to call the force on 999 immediately.
The following steps may help prevent drink spiking:
Never leave your drink unattended and keep your eye on your friends' drinks
Don't accept a drink from someone you don't know
Consider sticking to bottled drinks and avoiding punch bowls or jugs of cocktails
Don't give out your address to someone you've just met
If you think your drink has been tampered with, don't drink it - tell a trusted friend or relative immediately
Before going out, let someone know where you are going and what time you expect to be home
Make plans for your journey home