Casual labour should only be used for jobs, which do not require a great amount of skill in a particular area and which are not dangerous.

I have seen that certain smaller businesses tend to hire unskilled people and have them 'muddle along' not really knowing what they are doing at least for a period of time because they want to hire them on a low wage and keep them on a low wage.

If a company hires someone who is not able or qualified to do a dangerous job then clearly the company has been negligent and should be held accountable for any damage this causes. It is amazing that no action has been taken in a case like this. The law is clearly inadequate in this area.

The only real way to prevent events like these is to take legal action against those responsible, namely the employment agency because the company will claim that it relied on the agency to check out the employee’s credentials.

Perhaps the solution to this would be to enforce a certification for working in dangerous environments, where it would be illegal to place anyone for work in a dangerous environment unless they were certified, and being certified would mean having been given the necessary practical, theoretical training and advice and having passed exams etc. in that area.

Unless people are certified to work in a dangerous area, they should not be there. And that should be the law.