The Malaysian construction sector recorded the highest number of work related fatalities and one of the critical reasons is lack of knowledge among the management team and workers where a safety and health officer’s (SHOs) duty is to advise the employer. The study investigates the possible causes that could affect the credibility of the SHOs advice that positively associated to the knowledge of the employers on safety and health matters. The underlying possibilities were brainstormed through cause effect analysis technique by qualified subject matter experts. The study also suggested several recommendations for review and future solution of the unhealthy human factor of biased safety and health officer’s advice in Malaysian construction industry.