1. A computer implemented method for detecting behavioral deviations in members of a cohort group, the computer implemented method comprising: analyzing ocular metadata to identify patterns in changes in a size of a pupil of an eye of a member of the cohort group captured by a set of cameras, wherein the ocular metadata describes the changes in the size of the pupil of the eye due to dilation and constriction of the pupil, and wherein the patterns in the changes in the size of the pupil include a rate of changes in the size of the pupil, a degree of change in the size of the pupil, and a number of changes in the size of the pupil, and wherein the patterns in the changes in the size of the pupil indicate any external stimuli associated with the changes in the size of the pupil; and responsive to the changes in the size of the pupil of the eye indicating behavioral deviations in the member of the cohort group, identifying the member of the cohort group as a person of interest that is subject to an increased level of monitoring.