That's the question the Elections Department need to answer. Based on sample votes, it was able to predict with 100 percent accuracy the outcome of ALL the contested seats. How did they do it?
It is NOT possible. That's why we smell a rat.
I was an opposition counting agent at one of the counting centres. The counting process was above-board.
The ballot boxes from 5 polling centres were brought here and respectively placed at 5 tables. The ballot papers from each box were emptied onto the tables and mixed together. 100 ballot papers were randomly selected from each table and counted, i.e. 500 voting slips in all. Total number of voting slips for this counting centre was about 12,000.
For a 5% margin of error at 95% confidence level, you'd need a sample size of 373 for a population of 12,000. The sample size of 500 more than meets this criteria.
As a matter of interest, the actual vote percentage obtained at my counting centre after tallying
all votes differed from the sample count (500 votes by
3%, still within the 5% error allowed.