DIY kits that were hailed as fool-proof protection against drink-spiking by date-rapers are putting women at risk, according to a study by the Centre for Public Health at Liverpool John Moores University. The devices are giving inaccurate or misleading results, the study says. They are designed to change colour on contact with the likes of Rohypnol and gamma hydroxybutyrate. The Independent on Sunday 05/02/06 page 9