A/HRC/40/38/Add.1 XIII. Follow-up activities undertaken by mandate holders (nonexhaustive list) (2018) Follow-up activities undertaken by mandate holders (non-exhaustive list) (2018) A. Follow-up on communications In 2018, 158 follow-up communications were sent out of a total of 655 communications; (see Annex VI). In addition, the following three mandate holders issued observations on communications: Special Rapporteur on extrajudicial, summary or arbitrary executions Overview of activities undertaken by the mandate since 1 March 2017, including observations on communications transmitted between 1 March 2017 and 28 February 2018 and replies received between 1 May 2017 and 30 April 2018 (A/HRC/38/44/Add.3). Special Rapporteur on the situation of human rights defenders Observations on communications transmitted to Governments and replies received (A/HRC/37/51/Add.1) Special Rapporteur on the rights to Report presented at the 38th session of the Human Rights Council in June freedom of peaceful assembly and of 2018 taking stock on the work of all communications issued by the mandate association and drawing global trends on restrictions to the exercise of the rights to freedom of association and of peaceful assembly (A/HRC/38/34). B.Follow-up country visits Four mandate holders conducted in total five follow-up visits: Special Rapporteur on contemporary Visit to Nouakchott, Mauritania, from 25 to 28 April 2017 for a follow-up forms of slavery and its workshop with civil society stakeholders, the Government and the UN on consequences the implementation of the recommendations of the mandate issued after the follow-up country visit conducted from 24 to 27 February 2014 (A/HRC/27/53/Add.1). The report on the unofficial visit was presented to the government of Mauritania only in August 2018. Special Rapporteur on the rights of indigenous peoples Visit to Australia in July 2018 to speak at the First Nations Governance Forum, seizing the opportunity to follow-up on her country visit to Australia from 20 March to 3 April 2017 (A/HRC/36/46/Add.2) and to receive inputs for a report on indigenous peoples and self-governance presented at the 73rd UN General Assembly in September 2018 (A/73/176). Visit to Mexico in November 2018 in follow-up to a previous country visit conducted from 8 to 17 November 2017 (A/HRC/39/17/Add.2) and participated in a panel on legal pluralism organised by the Judiciary Council and various other meetings to advance the recommendations from the 2017 country visit. Special Rapporteur on the human rights to safe drinking water and sanitation Visit to Portugal on 26 January 2018 in follow-up to the country visit undertaken from 5 to 16 December 2016 (A/HRC/36/45/Add.1). Special Rapporteur on the situation of human rights defenders Visit to Mexico in February 2018 to meet with specific groups of defenders at risk and with the advisory board of the national protection mechanism in follow up to a prior country visit to Mexico from 16 to 24 January 2017 (A/HRC/37/51/Add.2). 38