Computing teachers now have a resource for both British values and for ethical, legal, cultural and environmental concerns, related to Brexit and also teaching the Computer Science legislation required by courses.
I would start students off with the pair work of News1 and News2 as a discussion task.
You can then run through the presentation, and then there is a discussion tasks.
Students take the worksheets (starting with Discussion in the file name) and then map the issues that Brexit might cause onto them. They can be provided with information about the various legislation that they need to study (Starting with FactSheet in the file name)
OCR's GCSE Computer Science specification (9-1) J276 requires students to discuss Computer Science technologies while considering:
And legislation relevant to Computer Science:
The Data Protection Act 1998
Computer Misuse Act 1990
Copyright Designs and Patents Act 1988
Creative Commons Licensing
Freedom of Information Act 2000