on在这里是什么用法?

题目

on在这里是什么用法?
1、The Argentinian football player Lionel Messi along with his father, who is also his manager, must appear in court next September on possible charges of tax fraud, local media reported last week.
据当地媒体上周报道,阿根廷足球运动员梅西及其父亲兼经纪人豪尔赫将因被指控逃税于9月份被传唤上庭.
2、Two restaurant managers were banned for five years from food production on allegations that they were collecting hotpot broth and reselling it to customers.
这两位饭店负责人是因回收火锅汤料并转售给消费者而受到指控的.

上面的两句话中on的用法是好象是相同的,但这种用法我以前没见过,请达人给解释一下.

答案

on 表示原因,可译为“因...”.
第2句的译文不全,“受到指控”应改为“被禁止从事食品生产5年”.