(1) The licensee must ensure that the computerised accounting system is not capable of accepting the entry of a transaction resulting in a debit balance to a trust ledger account, unless the system records the transaction at the same time and in a manner that enables the production, in a permanent form, of a separate chronological report of all occurrences of that kind.
(2) The licensee must ensure that the computerised accounting system is not capable of deleting a trust ledger account unless—
(a) the balance of the account is zero and all outstanding cheques have been presented; and
(b) when the account is deleted, a copy of the account is kept in a permanent form.
(3) The licensee must ensure that any entry in a record produced in a permanent form appears in chronological sequence.
(4) The licensee must ensure that each page of a printable record is numbered sequentially or is printable in such a way that no page can be removed from the record.
(5) The licensee must ensure that the computerised accounting system is not capable of amending the particulars of a transaction already recorded, otherwise than by a transaction separately recorded that makes the amendment.
(6) The licensee must ensure that the computerised accounting system requires input in every field of a data entry screen intended to receive information required by this Part to be included in trust records.