During Lord Bach's tenure, the United Kingdom was involved in choosing between the Boeing X-32 and Lockheed X-35 designs for the Joint Strike Fighter project.

Highlighting the level of British participation in the project, Lord Bach was present at the United States Department of Defense announcement that Lockheed Martin had won the competition.

Lord Bach was also at the signing of "Type Acceptance" – essentially, the release into service – of the RAF's Typhoon platform.

In October 2013, Lord Bach became a Shadow Foreign and Commonwealth Office Minister on the Official Opposition frontbench headed by Ed Miliband.

The Bach Commission was founded at the end of 2015, and worked to find evidence on the current legal aid crisis in the UK justice system.

[5] In Who's Who, Lord Bach listed his interests as watching cricket and football (he is a supporter of Leicester City FC).