You are under no legal obligation to tell them.
I would do so as a matter of courtesy, except for the fact that there are some officers who treat armed citizens as criminals. Because of those few officers, I do not disclose.
The police cannot tell if you have a LTCH by running your drivers license. I would not tell an officer that I'm carrying unless I'm put in a position where he can recognize that I'm carrying by print or actual observation. I don't want to create a reason to be cuffed and sat on the sidewalk while I'm being checked out.
to the first sentence.In the first place, don't give them a reason to stop you. Wouldn't do much good with my drivers license, accidentally spilled some cleaning fluid on the back of mine and the strip disappeared when I wiped it off.
Is it necessary to notify them that you are carrying or do they already know that you have the LTCH when they scan your driver's license. I just always figured I wouldn't say a word since I should never have a reason to be searched.
I think that depends on where you live. Some have linked their database with the ISP database or something like that. I know some towns have the ability.
I have learned from experience, do not keep your LTCH in proximity to you DL in your wallet. The last time I got stopped, the officer saw it, inquired as to whether I was carrying, and promptly disarmed me.
I agree with Indy Guy...don't ask, don't tell.
In the first place, don't give them a reason to stop you.
Remember, you do not have to be doing anything "wrong" in order for the police to stop you. You can be obeying the law to the letter when the police stop you, take one of your pistols and then point it at everyone in the neighborhood, including you.