The question of verifying the 'evidence' as the ground on which leave has been applied is relevant only in respect of Sick Leave. If the employee is feigning sickness, second opinion from a competent Medical board could be sought.
If you are knowledgeable about any fact, resource or experience related to this topic - please add your views. For articles and copyrighted material please only cite the original source link. Each contribution will make this page a resource useful for everyone. Join To Contribute