A TOXICOLOGIST has described to a jury the effects of the drug GHB that was allegedly used to sedate and rape a woman in Huddersfield.
Julie Evans told Bradford Crown Court yesterday that the drug can send a person into an unrouseable sleep and its effects can last for up to six hours.
The trial at Bradford Crown Court has been told that Simon Nash used the drug to sedate a woman before assaulting her and raping her.
Nash, 38, of Lydgate Drive, New Mill, claims that the woman, who cannot be identified for legal reasons, took the drug voluntarily and consented to the sex.
He has pleaded not guilty to charges of administering a substance with intent, false imprisonment and three counts of rape.
Mrs Evans told the jury that GHB, which is known as a date-rape drug, is colourless and virtually tasteless when mixed with another drink.
She added that when taken in small doses the drug can give off a euphoric feeling but can also lead to "unrouseable sleep".
Mrs Evans said that the description the complainant has given to the jury about waking up only briefly before passing out again would be consistent with having taken GHB.
But she also agreed with defence barrister John Elvidge who said the drug can cause confusion, and affect the perception of events.
Both Nash and the complainant were found to have traces of GHB and other drugs in their system when they were tested after the incident.
The trial continues.