In parliament, Fischer first served on the Committee on Education, Research and Technology Assessment from 1998 until 2009. From the
2009 elections, he was a member of the Budget Committee and the Audit Committee. In this capacity, he served as
rapporteur on the annual budget of the
Federal Ministry of Labour and Social Affairs (BMAS) and the
Federal Employment Agency (BA). He was also a member of the German Parliament's Berlin-Taipei Parliamentary Circle of Friends. In addition to his committee assignments, Fischer was member of the German delegation to the
Parliamentary Assembly of the Council of Europe (PACE) from 2010 until 2018. In 2009, he succeeded
Edward O'Hara as chairman of the Committee on Technology and Aerospace. He also served as
rapporteur on
Armenia from 2011 until 2014 (alongside
John Prescott and later
Alan Meale) and on
Ukraine in 2017. From 2014 until 2018, he was one of the Assembly's vice-presidents. Following the
2017 German federal election, the CDU/CSU parliamentary group decided against including Fischer in its list of nominees for Germany's new 18 person-strong delegation to PACE; the decision has been linked in media reports to his alleged role in limiting PACE's efforts to hold the Azerbaijan government under
Ilham Aliyev accountable for human rights abuses as well as possible corruption. In early 2020, Fischer co-founded an informal cross-party group of MPs from the CDU, CSU and
FDP parties who opposed a potential coalition government between CDU/CSU and the
Green Party. By March 2021, the CDU/CSU parliamentary group's leadership announced that Fischer would be replaced as chair of the Audit Committee. He was succeeded by
Carsten Körber. In October 2021, Fischer no longer ran as a candidate for Bundestag for the
2021 German federal election. ==Other activities==