He was the Western Cape Provincial Minister of Community Safety for two nonconconsecutive terms from 2010 to 2011 and again from 2019 until his dismissal from the position amid sexual misconduct allegations in 2022.

On 1 March 2022, premier Alan Winde fired him as Community Safety Minister after an independent report found sufficient evidence of sexual misconduct by Fritz.

Shortly afterwards, the Democratic Alliance Parliamentary Leader Athol Trollip appointed Fritz to the position of Shadow Deputy Minister of Correctional Services, serving alongside James Selfe, who was reappointed as the Shadow Minister of Correctional Services.

[5][6] In September 2010, Premier Helen Zille announced that Provincial Minister Lennit Max and Fritz would exchange positions.

In May 2011, Zille appointed Fritz to the position of Provincial Minister of Social Development, succeeding Patricia de Lille.

[9] In May 2019, Fritz was appointed as the Provincial Minister of Community Safety by the newly elected Premier, Alan Winde.

[14] On 21 May 2021, Fritz was elected as interim provincial leader unopposed after DA MPP Wendy Philander withdrew her candidacy.

[15] On 23 January 2022, Premier Winde suspended Fritz as the Provincial Minister for Community Safety after receiving "serious allegations" against him.

[21] The chairperson of Parliament's Portfolio Committee on Employment and Labour Mary-Ann Dunjwa condemned Fritz's alleged sexual misconduct.

[23][24] Fritz and four other provincial government officials, who have also been suspended, allegedly targeted young women to harass them sexually.

The Sunday Times reported that Fritz sent late-night WhatsApp messages to young women asking them to come to his room during government trips and DA party activities.

[25] On 1 March 2022, Winde fired Fritz as Community Safety Provincial Minister after an independent report found sufficient evidence of sexual misconduct.