Dublin, Ireland. **EMBARGO UNTIL 00.01 hrs, MONDAY MAY 22ND**. Pictured (left to right) is Sarah Egan, Sarah Curran, Ciara Smyth, Conor Callan, from the HSE National Drug Treatment Centre Laboratory, Sinead McNamara, Senior Biochemist, with Hildegarde Naughton, Minister for Public Health, Wellbeing and the National Drugs Strategy at the launch of the HSE Safer Nightlife programme, a harm reduction campaign, aimed at people attending Irish music festivals this summer. #HSESaferNightlife. Photograph: Leon Farrell / Photocall Ireland