All things considered, Arabian is right, I'm out of this thread too. I'd rather not be involved in any further advice about a company and situation I have no information on.
Ken - if you are still contemplating putting money in, ask yourself this, would you get in if you son was not involved in any way.
If the answer is no to the above question, nothing changes with a relative involved.
I recently had some dealings with people who had been caught in a share scam, they had lost tens of thousands of pounds each and some were rumoured to have lost over 100k. The shocking thing was that not all of them had been scammed by boiler room cold callers, some of them had 'invested' based on advice from trusted friends and family members. You can imagine how difficult this has made their home and family relationships.
You mentioned these are penny shares, I assume you mean that they are Pink Sheets or other OTC shares. These are prime territory for fraud, even if the company themselves are completely innocent. Like I said earlier they may even be restricted so that you cant sell them.