I think you go down to the local nick and say you want to report a case of perjury. Do be certain you get your facts right - accusing s/o of perjury could be expensive.....
and dont forget the G M C whether or not the perjury allegations get up and run. Incredibly since it is a doctors' regulator, they are interested in perjury - admittedly this was during one of its tribunals and the CPS were not interested. The GMC also boasts an anti-terrorist function God help us all.
http://www.1cor.com/1315/?form_1155.replyids=462
Are you sure they ( the experts ) were just mistaken - sorry not mistaken ?
Having been thro this myself - the admin of the now defunct children's hospital allowed evidence to be shredded ( all 2000 sheets of it ) and then put up a prosecutor to plead exactly the opposite in various tribunals. The evidence that refuted it was now horse-feed. The whole charade did not stop, they just skirted around those allegations and discussed something else. Oaths were involved of course and no one [not even the defence lawyer] was interested in this obvious perjury. He (one of the administrators) is the one I greet in a corridor with - 'hello you liar ! perjuror ! You will go to hell for what you have done. ' They spent a long time trying to fire me after that.
so good luck
I mean NoW did it with Jeffrey Archer adn then with Tommy Sheridan altho the last case is under review as a result of NoW phone hacking.