However, due to the vast scale and multifunctional nature of Scotland Yard and the fact that the law and order situation in the Greater Metropolitan area of London did indeed require the management of senior officers, the Whig Party could only resort to slowly phasing in reforms at Scotland Yard.
Even during this phasing period, the number of individuals available for them to choose from was extremely limited.
First and foremost, newly promoted senior officers needed to have an impressive performance record and social reputation; only then could the reform of corruption be justified.
Secondly, the individual's background must not be problematic, or to be more precise, the person could not have a military background, meaning he could not belong to the Duke of Wellington or any other military magnates from the Tory Party.
On this condition alone, nearly 90 percent of the senior officers at Scotland Yard were filtered out.
