Out of interest, how will you register without the ID of the holder. Bent Mickey or Ronnie the Fence down my way can knock you up a passport or driving licence at reasonable rates.
I get the impression that Chris might be unawares as to the various issues involved and is thinking its just a case of someone handing over their place and him putting his name down instead.
Otherwise he would have been aware of point 2.2 in their 'elf and safety code.
2.2 Participation in the Event is personal to you; you are strictly prohibited from swapping, selling or transferring or offering to sell, swap or transfer the place in the Event or allowing any other person to wear the Event number. Any breach of this Condition shall render the entry void. If you are found to be in breach of this Condition we reserve the right to exclude you from participation in future Events