Legal frameworks regarding found objects, often termed 'treasure trove' or 'salvage law,' would dictate ownership and preservation responsibilities.

The ownership of a discovered journal, especially one of historical significance, is rarely straightforward. Legal principles vary widely by jurisdiction. In some regions, 'treasure trove' laws might grant ownership to the finder if the original owner cannot be identified and the object was intentionally concealed. However, many modern laws prioritize cultural heritage, vesting ownership in the state or landowner, particularly if the object is deemed an artifact. For example, maritime salvage law often divides value between the salvor and the owner, while laws in many European countries automatically vest ownership of significant archaeological finds in the state. These laws aim to balance individual discovery rights with the public interest in preserving historical assets, often leading to complex legal disputes.