What ethical problems should bar security not have?

Such people should not appear: corruption, dereliction of duty, laziness.

1. corruption: security personnel should abide by the principles of fairness and honesty, and do not accept bribes or abuse power for personal gain.

2. Dereliction of duty and violation of the law: security personnel should do their duty and must not abuse their powers, commit crimes or be perfunctory.

3. Slack: Security personnel should conscientiously perform their duties and must not be lazy, which will affect work efficiency and safety.