Which of the following statement(s) is/are correct about the narcoanalysis test?
1. In the narcoanalysis test, the physiological responses of a person such as blood pressure, pulse, respiration, change in sweat gland activity, blood flow etc. are observed to determine if a person is lying.
2. A numerical value is assigned to each response to conclude whether the person is telling the truth, is deceiving, or is uncertain.
Select the correct codes from below -