The Law Bod has two distinct collections which could be pertinent for your research.
First there is the collection which has shelf marks beginning Jewish on Floor 3
Then there is the collection with shelf marks beginning Israel. This is in the alphabetical run of national jurisdictions on Floor 1.
The Bodleian Law Library's collection is principally in English (and other Western European languages).
Finding more commentary in online catalogue
To start your research with a subject search in SOLO
But consider also whether any of the following reflect your area of interest as well or better!
Jewish law -- Sources
Jewish law -- History
Jewish law - Interpretation and construction
Rabbinical literature -- History and criticism ;
Law -- Israel -- Jewish influences
Religion and law -- Israel
Law -- Social aspects -- Israel
Jewish law is one of those subjects for which other Oxford reading rooms may also have useful collections, principally the Leopold Muller Memorial Library (of the Oxford Centre for Hebrew and Jewish Studies) - but perhaps also the Bodleian's Oriental Institute Library, Philosophy and Theology Faculties Library, and The Sackler. SOLO searches will reveal their holdings too - so please pay attention to the holding locations in the results, and plan your visits!
Bodleian Closed Stacks
If your SOLO search uncovers works in the Bodleian Closed Stacks which would be useful, please use the Hold & Request function in SOLO to have them delivered to a Bodleian Reading Room.