Very well.
In fact, you rely explicitly and exclusively on the word of the person being hired. The Department of National Defence, despite the sensitive nature of the files it manages, does not do any research on potential conflicts of interest.
It would seem that Mr. David Yeo has a brother who also works at the Department of National Defence, Mr. Christopher Yeo. On his LinkedIn page, he wrote that he's an assistant safety manager, or investigator, or officer; in short, some title like that.
Don’t you think that there is a potential conflict of interest, knowing that this person, Mr. Christopher Yeo, had a position at the Department of National Defence, while his brother was getting a lot of contracts from that same department?
At least, don't you think that there is the perception of a conflict of interest?