The Palestinians have formally joined the International Criminal Court (ICC), a key step towards being able to pursue Israelis for alleged war crimes.
Foreign Minister Riad Malki attended a low-key ceremony at The Hague.
The ICC's chief prosecutor launched a "preliminary examination" in January, after the Palestinians signed its founding treaty, the Rome Statute.
Palestinian officials said they would wait for the outcome of the review before considering further action.
Although Israel has not ratified the Rome Statute, its military and civilian leaders could face charges if they are believed to have committed crimes on Palestinian territory.
Palestinian militants will also be open to prosecution.