The Belfast (Good Friday) Agreement of 1998 is a Peace Treaty. The Agreement included a mandate and mechanism for national human rights institutions in Northern Ireland and Ireland—a Joint Committee—to ensure strong cooperation between them. However, the Agreement assumed the UK's and Ireland's continuing membership of the European Union and when this changed following the referendum in 2016, the work of the Joint Committee was put into sharp focus. This article chronicles the collaboration of two institutions working in distinct legal and political jurisdictions in the context of the negotiations of the EU Exit and what was achieved and learned as a result.

1998 年的贝尔法斯特（耶稣受难日）协议是一项和平条约。该协议包括北爱尔兰和爱尔兰国家人权机构的任务和机制——一个联合委员会——以确保它们之间的强有力合作。然而，该协议假定英国和爱尔兰继续成为欧盟成员，当这种情况在 2016 年公投后发生变化时，联合委员会的工作成为了重点。本文记录了在欧盟退出谈判的背景下在不同法律和政治司法管辖区工作的两个机构的合作以及由此取得的成果和经验。