Put all sort of random obstacles to hire, just for fun.

That will create a slight advantage for people that just will lie about having those list of merits (while sending the honest researchers to spend valuable time trying to learn those skills, that aren't really necessary for the job). Will also promote ways to bypass the process, like bribes.

Repeat the cycle until liars start hiring more liars and start chasing off the honest researchers or slowly assimilating them.

Enjoy the results of your great job.