This webinar, which took place on 6 July 2021, focused on the interplay between legal data and data science. The webinar, entitled ‘Legal Materials as Big Data: (algo)Rithms to Support Legal Interpretation. A Dialogue with Data Scientists’ hosted fourteen panellists and was a joint awareness panel between SoBigData++ and Legality Attentive Data Scientists (LeADS), another Horizon2020 project founded by the EU (https://cordis.europa.eu/project/id/956562). The webinar included speakers from both projects and presented a mixed expertise between legal and data science fields, allowing for an interdisciplinary discussion on the subject.