It was a drug charge, and I then did and completed PTI (pre trial intervention)
Even though it may not have directly affected my getting a job wouldn't it just come down to a matter of some type of misrepresentation or slander?
Here is the deal, if you completed the pretrial diversion then it is up to you and your lawyer to make sure that the records are sealed and expunged as long as you qualified for that in your plea. The courts do not care and as long as it sits out on the books in the county records of the courthouse that you were assigned to then it will remain a part of your record and will be allowed to be reported. Charges and details as long as they are still on the courthouse records are a matter of public record. Nothing can or will be done until you either contact your lawyer about getting the proper paperwork submitted in order to get this sealed and expunged. As long as you have it in your paperwork and have no other felonies or misdemeanors on your record then they should allow it. Almost all states have pre trial diversion programs allowing for rehabilitation and removal of the criminal offense from the record once completed.
It will take a few months to work its way out of the system though and is not an over night process. If you keep records then make sure that once you get the order removing it from your record that you forward that on to the online background check companies that have the information. They will then purge their records and you will be golden yet again. As far as suing someone, the companies have to adhere to the FCRA and if they do not then it is a 10 grand fine for each wrong information reported on you. Nothing can be done now since it is a matter of public record but once you get the information removed the FCRA guidelines will apply.
I need to read your post more clearly, I guess but the state police like most police agencies are tort immune. You can ask them to fix it if it is just on the state police background checks. Those checks are different than the reporting agencies. If it is not coming up in a third party background check then it has been taken care of on that end, if on the other hand the state police have not up dated their records then it is on their end. You should be able to handle that directly with the state agency reporting it. State background checks are still ran for all licensing boards such as teachers, pharmacists, doctors, etc etc. Most all companies do not use the local state police but national credit reporting agencies. Hope this clears it up.
Good Luck.