This is sabotage and political. Investigations should start at the Examination Council of Zambia (ECZ) where I suspect some people could have been bought by a known leader of an opposition political party to leak examination papers to create an impression to the outside world that there is total breakdown in law and order in Zambia.
This political leader is in full panic mood as he is now seeing his hopes of stepping into State House fading away rapidly. But in desperation he will commit many more sins which will eventually see his final political fall in 2021. This is the beauty of Zambia being a Christian Nation. God has spoken.