It is not against the law for workers to work alone in retail as it is often a perfectly safe environment to do so. But the law requires employers to conduct health and safety risk assessments and carry out the relevant actions before people should be allowed to do so. Key areas include assessing the potential for any worker to be exposed to violence, manual handling issues and medical suitability. Additionally staff should receive the relevant training and have regular, appropriate external contact. https://bit.ly/2oZaJxD