Question

What do you mean by the 4R principle??

Answer 1

 examples of the four eyes principle at work:

1-Many legal and financial documents require the signatures of two individuals
2-.Banks, casinos and sensitive military areas often include no-lone zones: areas in which two people must be present and within each other's line of vision at all times.
3-The Emergency War Orders (EWO) safe, which contains missile launch keys and codes, is locked by two padlocks with keys held by different launch officers.
4-Some data management systems require that important record updates be approved by two separate people before the data is committed.