The University of Dar-es-Salaam under its department of Sociology faces alot of complains to have a massive increase number of supplimentary to its students.
The claims have been much discussed in various sites after good number of students more than usual obtain supplimentary in their former examinations.
I personally just came across the hot discussion in Jamii Forums "JF" on the issue and found wise to place it here.
To view many suggested causes check: http://www.jamiiforums.com/showthread.php?t=17011
You can contribute your personal comments here or in the site!