Drug and alcohol testing can raise privacy concerns among workers and employers. Under the Health and Safety at Work Act 1974, all employers are obligated to ensure their employees are healthy and safe while in the workplace. Thus, they aren’t permitted to allow a worker to keep working while under the influence of alcohol or drugs. However, even as employers conduct drugs and alcohol tests in the interest of public safety, they must have a drug policy in place and conduct the test with the employee's consent. Explicit consent must be obtained from the employee as failure to do that may result in intrusion of privacy contrary to article 8 of the European Convention on Human Rights. Notably, it’s within a person’s right to refuse a drug test if they feel it's an invasion of their privacy.