So let me get this straight, Chris et al are cashing out of the UK company by selling their shares to an unknown 3rd party based offshore.
Since nobody in their right mind would really want to buy those shares then who are they selling them to?
My guess is that if Chris has a working relationship with these companies, then perhaps some clever dealing has taken place to move backer money into those companies from the CIG parent company. This could be done in a legit way, eg paying for services, taking out a loan which is paid back with huge interest etc. but the end result is that backer money ends up offshore. Then Chris sells them his UK shares and pretends that this is 3rd party investor money. Since the intermediary is based offshore and the US financials aren't available, then there's no way to prove this.