My guess is that your friend is able to pull up your limited criminal history, but that certain employers (particularly law enforcement, and employers where employees have potential access to vulnerable populations - children, the elderly, the disabled or infirm) would be able to pull up your full history. You may wish to check out for yourself what appears in your limited history, while contacting the state police to see about ordering your full history so you can see how it would appear to those prospective employers who can access the entire record.

