As you are well aware that Google monitors your site for appearance of your AdSense served advertisements to ensure that those are complying with their program policies. If are looking information on Google AdSense Program Policy Violation information for your account. There is an option available within your AdSense account. There is information available in list wise, if you have violated any of the program policies willingly or unknowingly or may be attacked by some other frustrated banned publishers. To get the information you need to do the followings as stated in the picture above:
Step 1: Go to the Settings on top right corner of your AdSense account.
Step 2: Now Click on "Status"
Step 3: Click on Policy Violation tab available on left pan.
Step 4: Now Check on right side the details will be available (if any) for your perusal and necessary action.
Get Your AdSense Policy Violation Information
If not, then congratulation! you are maintaining a proper guideline.
Best of Luck.