Answer:
This person is using post-conventional reasoning.
Step-by-step explanation:
Kohlberg's stages of moral development center around 3 levels:
- Pre-conventional: generally a child's sense of morality.
- Conventional: the sense of morality develops according to social and personal relations.
- Post-conventional: the sense of morality goes deeper, centering on more abstract principles. A post-conventionalist tends to live by his/her own principles.
In this case, the person arrested for stealing the documents states that he/she has a moral obligation to prove that the company is using unsafe chemicals and the public has a right to know about it.
His/her sense of morality goes deeper than any societal relation. The person acted to his/her own accord, deciding to take certain justice into his/her own hands, thus he/she is using post-conventional reasoning.