Johannesburg - Investigations into cheating at some matric examination centres around the country will help maintain the integrity of the results, Parliament's education committee said on Tuesday."The committee supports processes initiated to investigate allegations of copying and cheating in certain examination centres," committee chairperson Nomalungelo Gina said in a statement."Such processes should be brought to conclusion to maintain the integrity of the results."Basic Education Minister Angie Motshekga said on Monday that 28 exam centres in KwaZulu-Natal and 16 in the Eastern Cape were being investigated for cheating.The committee congratulated those pupils who worked tirelessly and passed their exams, despite the implementation of a new curriculum."While there has been a drop in the overall pass rate from 78.2% in 2013 to 75.8% in 2014, the committee appreciates that the 2.4% drop is largely due to changes in the new curriculum which are aimed at improving the overall quality."Gina said the committee was pleased that the number of under-performing districts was steadily decreasing. Provinces with poor results a few years ago were showing progress, she said."This shows that the department's strategic interventions introduced in the education sector in recent years are bearing fruit."