Which ethical issues does the Post Office scandal raise?

Non-disclosure of known bugs, heavy legal spending to keep the truth hidden, a culture of not recording meetings, late apologies, hierarchical pressure to believe the system was flawless, auditors who didn't challenge it, and an unequal relationship with the IT supplier.

1. Lawyers / government: vast sums spent on the most expensive lawyers to prevent the truth coming out.
2. Non-disclosure: hundreds of known bugs, some causing false shortfalls, were not disclosed to defendants.
3. Apologies: Fujitsu apologised only years later for its part in "this appalling miscarriage of justice".
4. Culture of non-recording: some staff advocated not recording meetings to avoid having to disclose them.
5. List of issues: the inquiry asks who decided on Horizon's design, how it was piloted, what training users got, and whether investigators were qualified.
6. Compensation: convictions overturned and compensation paid, but late and incompletely.
7. Hierarchical pressure: investigators followed management's collective belief that the system had no fault.
8. External audit: auditors failed to ask the right questions about Horizon's reliability.
9. Unequal relationship: the Post Office was at a disadvantage in its contract with Fujitsu.