Today we consider Subject Access Requests (SARs) under General Data Protection Regulation (GDPR). As always, I am joined in this exploration by Jonathan Armstrong, a partner in Cordery Compliance in London. SARs may turn out to be one of the most onerous, costly and time-consuming issues for companies after the go-live of GDPR on May 25, 2018. Of all the requirements of GDPR, this may be the single one which companies are least prepared for going into the new regime.