Employers do ask opinions from employees within the company if they've worked together in the past. I'm not a lawyer so I'm not sure if that's grey area or not.
I don't find the law excessive, but I'm quite privacy oriented to start with.
Just ask for permission to google if it's crucial for the process.
That would seem to preclude things like criminal background checks, or even calling up universities to verify any educational credentials the applicant listed on their resume.
It does containg language like ... has no criminal record, except for child molestation etc... Which doesnt mean we're a country full of perverts, only that it can't be trusted for jobs working with children, another cert is used for that.
I had to provide the criminal background and prove my studies to my current employer.
I also had to pass a medical examination to obtain a certificate of eligibility to work.
They are provided by the applicant anyway, you don't do secret background checks, at least you shouldn't.
In the UK its only for working with kids and jobs requiring a proper security clearance.
Pretty sure that this is the first thing HR do everywhere, along with checking the personal page on social media etc. The first thing they look for is what the applicant told the world about his/her previous jobs and employers so that they avoid hiring people who talk too much.
In countries with more lax approach to privacy, yeah sure it's going to happen.
Around here it's illegal to google applicants without their consent. Hiring decisions can use only information that the applicant provided.
Granted, that's undetectable unless the person doing the hiring messes up and mentions this. I do follow the law myself, don't really know what others are doing.
Also not sure how widespread this requirement is even in Europe.