Where there are reasonable and objective grounds to question the authenticity or credibility of the ‘suspicious’ medical certificate issued by a medical practitioner, the employer has a right to investigate. Once the fact-finding process is carried out, the employer may set up a meeting with the employee to clarify their position. Where the medical certificate nonetheless appears irregular or questionable, the employer may, in accordance with company policy, request verification or refer the employee for an independent medical assessment. Only if the investigation establishes, on reasonable grounds, that the employee was dishonest, should disciplinary proceedings be initiated.