https://www.telegraph.co.uk/technology/google/11710136/Googl...
Anyway, this part sounds directly illegal, seems like it was just Randstad being greedy but if anyone from Google knew about it then it is bad but I doubt that they couldn't budget enough money to get the scans legally:
> They said Randstad project leaders specifically told the TVCs to (...) conceal the fact that people’s faces were being recorded and even lie to maximize their data collections.
https://www.nydailynews.com/news/national/ny-google-darker-s...