I was arrested for driving under influence even though drug test was negative. Charges were finally dismissed Now 12 years later I am trying to get my grandson that has became a ward of court. I had to be fingerprinted in order to get the child. Fingerprints show I have an endangerment charge. What can I do to stop this from appearing because as I said the case was dismissed

I need to figure out how to keep this from causing me more problems in future. I cannot afford to hire an attorney also do not feel I should have to hire an attorney as I was not convicted

''I was arrested for driving under influence even though drug test was negative. Charges were finally dismissed Now 12 years later I am trying to get my grandson that has became a ward of court. I had to be fingerprinted in order to get the child. Fingerprints show I have an endangerment charge. What can I do to stop this from appearing because as I said the case was dismissed''

No one ever has to hire an attorney. But you can't get a court-appointed (free) one because you are not a defendant. Therefore, you need to study enough law to know how to fight this on your own.
A clue to why you show this old charge is the word 'finally.' How long was it from when you were stopped to when charges were dropped?
I ask that because once records go out into the world, mainly background check companies, they can be perpetuated simply because the background agencies are too cheap to pay for more recent data. IMO, that is grounds for suing the check companies, but I don't know if anyone has ever succeeded in winning. The problem is rampant.

Was the DUI the same case as the endangerment? Was a minor in the car?

You go to the court that dismissed your case and get it in writing.

tal - getting it in writing does almost no good at all. Documents are too easily faked.

It can always be verified by whomever questions it. As it stands now it shows up on background checks, so obviously there is some clearing up to do, and you don't need a lawyer for that. At least he get the benefit of seeing what he NEEDS to start the process of clearing things up to get beyond it.

Maybe it's an error, or oversight of the court, but you still have to find out what the problem is.