What steps can the recruiter take to ensure that the applicant pool chosen for the next step of the recruitment process is made in an unbiased and nondiscriminatory manner?

300 words, No Plagiarism
How can a recruiter from the company you work for (or a company that you are familiar with in your local market) screen out the unqualified applicants in a way that is not perceived as discriminatory or unfair?
What steps can the recruiter take to ensure that the applicant pool chosen for the next step of the recruitment process is made in an unbiased and nondiscriminatory manner?