In the US, a professional will give you his resume and not a certificate. You can verify the previous contracts the professional has done.Paul
I guess, then, that you would not give anybody his/her first job. There are plenty of examples (and many from long ago) of people who operated (sometimes literally) with false credentials for long periods. In other words a resume may not be much use either....R
If you go to hire a professional (any professional) and s/he shows you a certificate - how can you trust it?...R
Documents aren't peer reviewed on our side before being uploaded
I had 2 customers that I should have seen their certificates or lack thereof.
Funny but rich assholes are the least likely to pay for work.