Firms' worries over staff drug-taking in Wales
One in three employers in Wales would not know how to tell if a worker was under the influence of recreational drugs, a survey has found.
The findings come amid growing concern about the level of new-style drugs such as mephedrone in Welsh communities.
Former senior serious crimes officer Martin Tavener said: "This drug is so prevalent and so easy to get hold of."
A conference on Thursday is to offer employers solutions to substance misuse by workers.
BBC Wales' economics correspondent, Sarah Dickins, reports for Wales Today.
05 Sep 2013