this informative post on the American Society of International Law Unbound website concerning Remedies for Harm Caused by UN Peacekeepers. He observes:
Unfortunately, as the latest annual report [of the Secretary General] demonstrates, while the situation has improved, there continue to be problems with compliance by troop contributing states. According to the report, since 2005, the number of complaints has fallen from 373 to 88 in 2012.
However, the report also demonstrates that the greatest number of complaints continue to be in regard to peacekeeping troops and that there continue to be problems with the troop contributing states following up on the complaints.