The "Brandschutzbeauftragte" (=fire prevention officer) are in duty for preventative fire protection measures. They are supported by "Brandschutzhelfer" (=fire protection assistants).
The "Sicherheitsbeauftragte" (=safety representatives) are responsible for all safety matters.
Trainings are offered by the "Dienststelle Arbeitssicherheit" (=Occupational Safety Service). If you have been trained, please provide information to the department administration, because it has to be monitored that there is a sufficient number of functionaries.
Fire prevention officers and safety representatives do not take any responsibility with respect to the organisation of the workplace and are not responsible for detected defects. It is almost desired that these people are not recruted from staff with a leadership function, because in this case it could happen that a boss is consulting himself about work safety.
Nevertheless these jobs thrive on the commitment of the people doing these jobs.
Usually a safety representative is more taking care about his own working group and a fire prevention officer is more taking care of a building or a part of a building. Nevertheless there is a big overlap between both jobs. For example both should check, if a fire extinguisher is in proper condition. Therefore interested people should think about to assume both jobs.