[4][5] Called to the Bar at Gray's Inn in 1989,[6][7] Cheema-Grubb, in 2006, became the first Asian woman to be appointed a Junior Treasury Counsel.
In 2013, Cheema-Grubb took silk (QC)[6] serving as Senior Treasury Counsel before receiving authorisation to sit as a deputy High Court judge.
[6] She chaired an Advocacy Training Council working group which produced the report "Raising the Bar: The Handling of Vulnerable Witnesses, Victims and Defendants in Court".
[8] Cheema-Grubb successfully acted for the prosecution against retired Anglican Bishop Peter Ball for sexual abuse[9] and against barrister and Recorder Constance Briscoe for perverting the course of justice.
[10] Appointed as a High Court judge on 22 October 2015,[6] Cheema-Grubb was sworn in to the Queen's Bench on 25 November 2015,[5] receiving the customary accolade of the Realm as DBE.