A person who helps you break the law
A
Spy
B
Collaborator
C
Ally
D
Accomplice
Correct Answer: Accomplice
One word substitute is Accomplice.Spy: a person employed by a government or other organization to secretly obtain information on an enemy or competitor.
Collaborator: a person who works jointly on an activity or project; an associate.
Ally: a state formally cooperating with another for a military or other purpose.
Accomplice: a person who helps another commit a crime.