The interview process is situational based interviewing. So, they ask questions like- tell me about a situation in which your supervisor told you there was a problem with your work, and what did you do about it. Also within my department the interviews are all scheduled for an hour so attempt to reach that threshold to have a good interview. Also, there will be two people interviewing your and they will typically tag team and alternate asking questions. Lastly the two people will likely be of different levels with one typically being a manager and the second person being an officer or above within the department, not specifically within the reporting structure of the position being hired.