Hi! I'm not working as a Safety Officer but have some knowledge about HSE since I work in a power and water generating plant. Basically two types of interview: (1) HR's interview which includes about your job background, personal matters and perspective, availability and importantly target salary and (2) Technical Interview. The latter is a more difficult part of the application process since it will track down your sound knowledge about the position you are applying for. So better review your resume'. Interviewers ask questions related to the information you put in your CV. Prepare yourself to the technicalities and situational questions which further test your flexibility. Best of luck for you!