This essay offers a space in the world of clandestine excavation, effected from the 50s to the 80s in a specific area called Macchia del Comune in Bracciano (RM).Try to explain how many people come to the clandestine excavation almost by accident.In addition to this there is a bit of history of the territory, made exclusively on what was visible but not deepened by official excavations, also speaks of the new dangers that pass those that I have defined the Novelli tombaroli by chance, people who want to go to theresearch (here I speak of the metal detector) not knowing the laws exposing themselves to possible complaints from the authorities.finally, there is an overview on legal research with metal detectors and the rules of behavior, rallies, competitions and associations of this wonderful hobby. Arduino Sacco Editore pag.130