An expert course in HSE for leads: the system of the Working Environment Act and the Internal Control Regulation, systematic HSE work (mapping, risk assessment, the measure hierarchy, deviations and improvement), roles and party cooperation (safety representative, AMU, occupational health service, the employer's HSE training duty), psychosocial and organisational working environment with follow-up, working hours and adaptation/sickness absence, and supervision, reactions and sanctions from the Labour Inspection Authority.