Some firms have come to rely on urinalysis and even hidden cameras to locate drug users while others provide rehabilitation clinics for workers who choose their jobs over drugs.

• 一些公司已经依助于尿液，甚至用偷拍的方法来锁定吸毒者，而另外一些公司为那些愿意工作而想戒毒的员工提供康复诊所。