The head of the department has the overall responsibility to ensure that the safety regulations are followed. The labour union safety representative or the head independently has the power to stop the work of a person as a preventive measure. The department is supervised by many authorities. Safety regulations about the environment protect the staff and others, even socially and psychologically. It is important that all chemicals are listed in a file and that toxic chemicals are treated correctly.
Some carcinogenic chemicals are completely forbidden.
There are also rules for handling infectious virus, bacteria etc. The plan for internal control of the work environment must be revised once a year. There are rules for handling and storing inflammable fluids etc. The department has a list of isotopes which must be kept up to date as the isotopes are used. You are not allowed to work with radioactive isotopes until you have attended a special course about radiation protection.