[stylin19a]

How is (b) (ii) interpreted ?
(ii) any matters that arose or may arise directly from the investigation;

this seems like no brakes and if there is any fork in the road, take it.

[Cboldt]

-- How is "any matters that arose or may arise directly from the investigation" interpreted? --

That part is in case there are "directly related" crimes that aren;t specified in the primary purpouse of the investigation. Say for example that the Trump campaign issued a death thret or otherwise extorted money or services for the campaign. Extortion is then directly related to another illegal activity.

But if Manafort was money laundering on the side, in 2008, that is not directly related to any crime the campaign might have otherwise perpetrated.