HERE AT OU'S LEARNINGSPACE http://openlearn.open.ac.uk/course/filter.php?grouping=topic&detail=16&order=date YOU GET A GOOD QUALITY FREE LECTURES ON ALL ESSENTIAL QUESTIONS OF PART A OF F4 ENG SYLLABUS.
Note they are inted for law students, so they are more detail than required but helpfull to grasp and digest difficult questions in law.
Judges and the law (W100_3) http://openlearn.open.ac.uk/course/view.php?id=2987
Parliament and the law (W100_2) http://openlearn.open.ac.uk/course/view.php?id=2984
Making and using rules (W100_1) http://openlearn.open.ac.uk/course/view.php?id=2943
Human rights and law (W100_5) http://openlearn.open.ac.uk/course/view.php?id=3471
Europe and the law (W100_4) http://openlearn.open.ac.uk/course/view.php?id=3468

They were helpful for me at least, as a non-Englishman.