Health, Safety and Security
What the domain covers
Supervisors carry a legal and moral duty to protect workers, clients, and the public. Candidates should understand the hierarchy of control - eliminate, substitute, engineer, administrate, and use PPE last - and why PPE is the least effective control. Know risk assessment (identify hazard, assess likelihood and severity, control, record, review) and the difference between a hazard (source of harm) and a risk (chance and severity of harm). Understand safe systems of work, method statements, permits for high-risk tasks, and COSHH-type chemical controls: correct dilution, labelling, storage, and never mixing chemicals.
Security concepts include access control, visitor management, key control, lone working, incident reporting, and escalation. Understand near-miss reporting as a free lesson, and the supervisor's role in investigating incidents factually without blame. Know emergency procedures: evacuation, assembly points, first aid, and the supervisor's duty to account for staff. Understand manual handling principles and slips, trips, and falls as the most common cleaning injuries.
Traps to watch for
Questions often imply PPE alone solves a hazard - the correct answer applies higher-order controls first. Another trap is a supervisor who delays reporting an incident or discourages near-miss reports. Watch for answers that mix chemicals to save time, or that store chemicals in unlabelled containers. Beware of treating risk assessment as a one-off document; it must be reviewed when the task, people, or equipment change.
Worked example / rule of thumb
A worker reports a wet floor near a busy entrance. Rule of thumb: isolate, inform, record, review. Isolate (sign and cordon), inform (tell the supervisor and reception), record (incident/near-miss log), review (change the mopping schedule or matting to prevent recurrence).