Fable
There is a message station built on the other side of the state line
The prefecture's message station relayed household registries, tax ledgers, and litigation transcripts for the counties. The Qingzhou prefect, worried about outsiders prying, required the message station to set up a branch archive within the prefecture compound, with keys held jointly by the prefecture and the station chief, and no outside personnel allowed in.
After the branch repositories were built, the prefect was reassured: clerks retrieved scrolls in their own courtyards, and the gatekeepers recognized them. But half a year later, the judicial officer discovered that a batch of household registration copies had been sent to an old repository outside the border, saying that the humidity control there was better and the rent lower. There were branch repositories within the prefectural office, but the account books' copies slept elsewhere.
The stationmaster explained that the people handling matters and the counter were both in Qingzhou, and who could enter the vault was also governed by Qingzhou's rules. The investigating official asked in return: then where are the account books themselves ultimately kept? Are the copies, old volumes, sealed volumes and reference volumes all kept in this prefecture? If the law requires that they not leave the prefecture, just managing the entrance is far from enough.
The prefecture therefore rewrote the contract. The first part stated "who guards it, who opens the cabinet, who can enter the vault," stipulating that branch vaults were within the prefecture compound and that keys and personnel were managed locally. The second part stated "where the files live," stipulating that originals, copies, old transcriptions, and disaster-recovery transcriptions must not cross the prefectural boundary, and that any transfer of the vault required prior approval.
Later, neighboring states also bought message station services. Some only required that case files remain in their own state and did not mind remote scheduling of scribes by the main station; others required that counters, personnel, and case files all be within their own courtyard. Both appear to be talking about "keeping it here," but they actually govern different levels.
The judicial officer finally drew two lines for the newcomer: one circled the place of business and custody rights, the other circled the region where the account books ultimately reside. The former answers who is in charge, the latter answers where things sleep. Draw only one line, and compliance will eventually leak.
Later, when a flood occurred, Qingzhou wanted to restore household registrations from the backup volumes. Only then did the clerks discover that the in-house branch storage was normally guarded by locals, but the disaster-recovery copies had been sent to an out-of-state mountain vault under the old head-station rules. The prefect did not blame the gatekeeper, because the gatekeeper had indeed been dutiful; he instead asked whether the contract clearly stated the final resting place of each type of volume. After that day, when the prefecture accepted deliveries, it first looked at two lists: where people handled business, and where volumes spent the night. Later the head station proposed replacing the regional commitment with stricter access control. The judicial officer refused: access control can govern who reaches out a hand, but not where the volumes are placed on which piece of land. Only when the two lists are kept separate can responsibilities avoid covering for each other.