A job interview is equally important for the employer and prospective employee. An interview is where the candidates' employability skills are tested to decide if they are the right fit for a particular position and organization.
Interviews need to be fool-proof because your firm puts so many resources into the hiring process. You and your team want to ensure that you hire the very best candidate at one go.
A perfectly executed interview can attract excellent potential candidates, while a poorly planned interview may do the opposite: attract an individual that is unsuited or unqualified for the position and your company.
Source: https://www.entrepreneurshipsecret.com/job-interview-styles/