Officers' experience in different surroundings affect the way they react to service calls.
The economic status, poverty level, race and ethnicity influence the officer and how he sees and reacts to his surroundings.
Discretion has been called "the Art of suiting action to particular circumstances" (Lord Scarman).
Those in a position of power are most often able to exercise discretion as to how they will apply or exercise that power.
Thus, the officer would then treat the individuals differently.
This can be an argument either for or against police using discretion.
Discretion has the meaning of acting on one's own authority and judgement.
In law, discretion as to legal rulings, such as whether evidence is excluded at a trial, may be exercised by a judge.
On the one hand, all people should be treated equally regardless of race or economic status.
On the other hand, officer and public safety are the most important duties for an officer.