BuddyPress.org

hi @flickchicks,

take example from the TOS at the bottom of this page. But you probably have to inquire for something more accurate with the dutch law, depending your project.

https://buddypress.org/support/topic/accept-site-terms-and-conditions/
http://wordpress.stackexchange.com/questions/81935/add-first-name-last-name-date-of-birth-and-terms-and-conditions-to-reg