Modern UK examinations are easy to cheat.
(By examinations I mean any work where marks count for qualifications.)
Those who set the exams are dishonest about this, pretending that there will not be cheating.
Therefore, many people cheat - which is dishonest.
That there is cheating, is obvious, and known - but it is dishonestly pretended that there is not cheating.
Yet cheating is endemic, and obvious - always present at high prevalence.
But because of this pervasive dishonesty - all round and on all sides; cheating must be proven, with legal standards of proof.
Anyone who detects cheating is punished, by lots of extra work and an assumption of cruelty and malice - the crime being to reveal reality in a system of dishonesty.
Lies beget lies beget lies - people are corrupt and know they are corrupt and come to accept that corruption which is an evil, of course - but the original fault was with the rulers, the leaders, the teachers who made it easy, profitable, unpunished to cheat in exams.