Please let me know...
Regards,
Sujeesh
Mail ID: sujeeshtm068@ gmail.com
From Oman, Muscat

I recommend you conducting the training on the safety aspects of the workers' work. Thereafter, obtain the certificate from the operations in charge about implementation of the training practices. This way, you will be able to protect yourself, though partially and not completely.
Thanks,
Dinesh Divekar
From India, Bangalore