I'm trying to use biblatex to generate citations that follow the Oxford Standard for Citation Of Legal Authorities (OSCOLA). I'm not sure what citation style this is based on - it doesn't seem to use Oxford referencing style. Is anyone aware of a biblatex style file that generates output like in this document?
If not, is there any quick start guide to writing your own style file? I have had a go, using the

Thanks,
Rónán