As of 2023, Bas Haan continues his role at Nieuwsuur, where he remains a leading figure in Dutch investigative journalism. His work continues to influence public debate and hold power to account, maintaining his reputation as a dedicated and impactful journalist.

During the COVID-19 pandemic, Bas Haan focused on the impact of the crisis on Dutch society and politics. His reporting provided critical insights into government responses, healthcare challenges, and the social consequences of the pandemic, contributing to public understanding and discourse.

In 2019, Bas Haan conducted an investigation into allegations of misconduct at NRC Handelsblad, one of the leading newspapers in the Netherlands. His reporting shed light on internal issues and contributed to a broader discussion about journalistic ethics and accountability.

Bas Haan was awarded the prestigious De Tegel award in 2017 for his outstanding investigative journalism on the 'Bonnetjesaffaire'. This accolade recognized his exceptional ability to uncover complex stories and his contribution to Dutch journalism.

In 2016, Bas Haan published a book detailing his investigation into the 'Bonnetjesaffaire'. The book provided an in-depth look at the scandal and the investigative process, offering readers a comprehensive understanding of the events and their implications for Dutch politics.

Bas Haan gained national acclaim for his investigative reporting on the 'Bonnetjesaffaire', a political scandal involving the Dutch Ministry of Justice. His work uncovered significant evidence of misconduct, leading to the resignation of several high-profile officials and sparking widespread public debate.

In 2010, Bas Haan transitioned to Nieuwsuur, a respected Dutch current affairs television program. At Nieuwsuur, he continued to focus on investigative journalism, covering a wide range of topics including politics, social issues, and international affairs.

Bas Haan began his career at NOVA, a Dutch current affairs television program, where he honed his skills in investigative journalism. During his tenure, he worked on various high-profile stories, establishing himself as a meticulous and dedicated journalist.