[2] On 25 November 2009, President Jacob Zuma announced that Tshiqi would be elevated to the Supreme Court of Appeal permanently with effect from 1 December 2009.
During that time, between November 2014 and May 2015,[8] she served as an acting judge in the Constitutional Court of South Africa, filling the seat of Justice Chris Jafta.
[9][10] During her acting stint, she wrote two majority judgements for the Constitutional Court in the matters of City Power v Grinpal Energy Management Services and Coughlan N.O.
[11] Shortly after the end of her acting stint, in June 2015, Tshiqi was one of five candidates, all women, whom the Judicial Service Commission shortlisted for possible permanent appointment to Justice Thembile Skweyiya's vacant seat on the Constitutional Court.
In February 2019, the Judicial Service Commission shortlisted Tshiqi for one of two new vacancies at the Constitutional Court, this time created by the retirement of Justices Dikgang Moseneke and Bess Nkabinde.
[11] When she was interviewed in April, she described herself as an "all-rounder" with experience in different fields of the law, expressed her view that judicial interpretation could not be "formalistic", and answered questions about the level of collegiality at the Supreme Court of Appeal.
[11][15] After the interviews, the Judicial Service Commission named Tshiqi and four other candidates – Annali Basson, Patricia Goliath, Jody Kollapen, and Steven Majiedt – as suitable for appointment.
[16] In September 2019, President Cyril Ramaphosa announced that he had selected Tshiqi and Majiedt to join the Constitutional Court with effect from 1 October.