This is the introductory slide deck for the joint event by the legal hackers (Brussels chapter) and the Belgian data scientists on 1 August 2017. The aim was mainly to introduce the session where everybody could ask questions and those with the answers could give them. The event's page is here: https://www.meetup.com/Brussels-Legal-Hackers/events/241266134/ The event's message board is here: https://www.meetup.com/Brussels-Legal-Hackers/messages/boards/thread/51045002 A second session is planned for 5 September 2017 at Digityser in Brussels.