Ha'aretz
Human rights lawyers and pro-Palestinian activists in a number of European countries hold lists with names of Israel Defense Forces soldiers allegedly linked to war crimes committed during Operation Cast Lead in the Gaza Strip. Existing legislation enables arrest warrants to be issued against these officers if they enter those countries.
...The other nations who have lawyers collecting information on the matter include the Netherlands, Spain, Belgium and Norway, whose laws, as well as Britain's, allow the issuance of arrest warrants against foreign citizens suspected of war crimes...
...a small number of names of IDF officers is already on a British police watch list, and that when they arrive in Britain the authorities will issue an arrest warrant that will lead to their possible detention.
...The IDF did not wish to specify the instructions it has given to officers before they travel abroad. In practice, many of the officers who participated in the Gaza operation have been asked to consult with legal experts at the Foreign Ministry, where they are instructed how to behave abroad and where they need to lower the profile of their identity; in some cases they are advised not to visit certain countries. Full story