Today I learned the following:
On 9th June 1947, it became legally impossible for Soviet labour camps to
1) access their bank accounts, or get money paid into them
2) get distributors of essential supplies to deliver to them.
This was because the secrecy rules changed. Their full addresses became secrets which they could not disclose.
Distributors of supplies already knew them, so could deliver goods that the labour camps ordered, but were no longer able to accept orders, because orders had to include the full address unless they were 'secret' orders, only military establishments could issue secret orders, & labour camps were not military establishments. The MVD had been transferred to the Ministry of Justice.
They could not access their bank accounts because they could not give Gosbank (the state bank) their full addresses. Gosbank already held the full address of every account holder, including labour camps. It was part of the identity of the account. Transactions could only be made if the correct identity was supplied. But because the address was now secret, neither the camps, nor entities seeking to transfer money to them, could supply it to Gosbank, even though Gosbank already knew it. It was therefore legally impossible for Gosbank to accept requests for payments into or from those accounts.
There was a way round the banking problem. Camps had an alternative identity. If Gosbank substituted this for the full address, all would be well. But it wasn't legally possible to give Gosbank the alternative identity in a form in which it could be matched to the information Gosbank already held.
For the next six years this caused immense problems, with illegal (& in theory punishable by severe penalties) unofficial arrangements having to be made simply to allow the GuLaG to work, & constant interruptions to supplies & payments as carefully & riskily negotiated arrangements broke down (I assume because one party retired, or died, or changed job, or got frightened) & had to be renegotiated.
All the transactions which were inhibited were official, authorised transactions between state agencies, which were necessary for them to make in order to fulfil their legal duty to abide by the plan.