Legal Ontologies to Embed within AKN

Hi,
I'm looking to expand the structured content within my AKN XML by using more than LKIF-Core [0] to represent additional metadata.
Can anyone provide me with resources relating to more general/non-domain specific/non-localized ontological resources for use within Legal Markup?
Thanks in advance for any resources/help :0)
Lewis

[0] https://github.com/RinkeHoekstra/lkif-core/

Glasgow Caledonian University is a registered Scottish charity, number SC021474

Winner: Times Higher Education’s Widening Participation Initiative of the Year 2009 and Herald Society’s Education Initiative of the Year 2009.
http://www.gcu.ac.uk/newsevents/news/bycategory/theuniversity/1/name,6219,en.html

Winner: Times Higher Education’s Outstanding Support for Early Career Researchers of the Year 2010, GCU as a lead with Universities Scotland partners.
http://www.gcu.ac.uk/newsevents/news/bycategory/theuniversity/1/name,15691,en.html