The case of your law friend is interesting. Did this person ask for any feedback/reason from cambridge why they were not offered an interview. At this moment the only reason I can think of is that this person didn't actually do very well at the LNAT...but you seem to think that they did (although you cant be sure). I would be suprised if cambridge werent willing to give a reason for not interviewing this person at all. I agree that by the sounds of things they should have got an interview, hence I am confident there was a valid reason for cambridge not interviewing...I would be interested to know what it was. Why dont you try and find out?