To become a firefighter, your profile shall be checked carefully if you have got trained qualifications and skills in firefighting? Working in a group and in case you haven‟t been trained before, you can influence other persons as well as expose others to risks. Therefore, it is important to answer properly and honestly about your previous training and education courses in the interview. And you also need to have relevant documents or certificates. They can be used to prove that you have been trained before; however, it is not necessary to show them in a short- time interview and if the interviewers don't ask.