On Monday, December 2, 2019 at 0058 hours, Corporal Mark Burkholder was called to the area of the 1600 block of Manor Boulevard for a domestic situation.  Upon arrival, he learned that Rose Dow, 65, Lancaster, had slapped her 37 year old son because he had entered Dow's and her husband's bedroom when the son heard the couple fighting.  The Officer was told that the son had knocked on the door prior to entering the bedroom but Dow did not hear the knocks.  When her son entered the bedroom, she got mad at him and slapped him in the face.  Based on the Officer's investigation, he filed a non-traffic citation for harassment under the domestic violence law.  The citation was filed at MDJ Keller's office.