You can look at past ECHR decisions for countless cases of abuse by various national governments.

You can look at the history of EAW related litigation also, it'll probably prove most informative. Executing states used to constantly deny requests due to judicial review, rules were clarified to remove the possibility of judicial review by executing states.

I was expecting you might have a relevant example that applies to this discussion.

Writing "EAW abuse" into google finds endless lawyer marketing posts. The facts of the first one I clicked on sound pretty bad!

https://greatjames.co.uk/martin-henley-secures-the-dismissal...