What qualifications should the lead assessor possess?

At least one member of the assessment team must be a CIA and the team must collectively possess the following:

• Be a competent, certified audit professional (e.g., CIA, CPA, CA, or CISA) who possesses current, in-depth knowledge of the Standards. 
• Be well-versed in the best practices of the profession. 
• Have at least three years of recent experience in the practice of internal auditing at a management level. 
• Have competence and experience, such as that gained from working previously as a team member on an external quality assessment, successful completion of The IIA's quality assessment training course or similar training. Be a CAE or have comparable senior internal audit management experience.