Constructive Knowledge.
Danrae through its personnel who attended the training course knew about the adhesive's dangerous properties and that the heat gun was a potential ignition source, but "failed to incorporate that information into its SWMS and to train its workers on the content of an adequate safe work procedure", the Judge found.
‘Through its personnel who attended the training course’ - the employer knew what the workers knew.
‘Failed to incorporate that information’ into its Safe Work Management System.
What a worker knows - their employer knows.
The employer must tell the other workers.