Thank you Fireflybob for your post,
I'm just trying to know where this strange procedure is applied everywhere, because I've understood is not a common procedure...Surely is not an ICAO approved procedure, because according DOC 4444 you can reduce separation only under certain conditions in chapter 7.11.
I know that in this case you relieve the responsability for separation to the succeeding aircraft, and so in theoretic way, in case of unexpected situation, pilot should be responsible for go around. But, my question is, if the pilot for unknown reasons shouldn't able to go around anymore, or if it lost the nr.1 in sight when it's too late to go around, and in both situation the nr.1 is still into the runway, under specific legal way the judge don't give you any responsability or will search for meteo, technical or procedural reasons, refered only to ICAO rules??