Of course, it's a known fact that Israel never allows its ethnic brethren to be extradited.
It might be well known, but it certainly isn't a fact.
My general question is: should the time lag and the age of health of perpetrators be considered when deciding whethe to prosecute?
Given the way that everybody involved in the murder of Pilecki and were still in Poland in 1989 were essential let off (not one of them was tried), Poland doesn't exactly do much for its international reputation by hounded Jews to their graves.