Former Grain Marketing Board chief executive Martin Muchero has been sentenced to 150 hours of community service while the former finance manager Dorothy Chasakara will serve a total of 550 hours of community service for their corrupt dealings. Muchero was on Wednesday found guilty on one count of corruption involving a $59 000 deal, while Chasakara was convicted of the same count plus a charge involving the purchase of 21 vehicles for more than $1,6 million.