otherwise legal material to assemble it. If a person has in his possession or control the ingredients to make an explosive device, he can be charged with constructive possession of that device. In regards to determining if a firearm is loaded, some states with strict gun control laws apply the concept of constructive possession in establishing that one is in possession of a loaded firearm if the individual has both the firearm and its ammunition in their possession or readily accessible, regardless of whether or not a live round is in the firing chamber or a magazine with live ammunition has been inserted into the firearm. In this context the firearm would be considered "legally loaded" by law, even though it may not be physically loaded. References Legal fictions Property law