the next cohort to commission will wear peak cap. that usually
happens halfway through pro term, and only depends on when the
batch before commissions. for some wings, they get to wear peak
caps before they go to ROC, while for some they have to wait until
just before they go for Lancer.
commissioned officers would be issued the appropriate peak caps
when they draw their no. 1. if you are refering to someone at the
commissioning parade, of course, there is no way to change on the
spot when they are commissioned! so lan lan lor.
