The singer claims the alleged stalker believes she and Martin are in a relationship, and in legal papers, obtained by The Blast, the "Fix You" star states the unnamed woman has turned up at his place multiple times, despite being told to stay away by police officers and security officials.
Chris insists she has become overly aggressive and he is now worried for his safety and that of his girlfriend and his kids from his marriage to Gwyneth Paltrow.
He claims the alleged stalker has sent him letters referencing his children, suicide, and death.
He has included his partner, actress Dakota Johnson, and his children, Apple and Moses, under the terms of protection.
The woman has been informed she must stay at least 100 yards away from Chris until a court hearing next month (April 2019).