Girl cuts work all the time

Hello everyone ,this has got to be the oddest situation I have been in my whole small life.I work with an MIS group that maintains servers /workstations alike and control the whole facility here at company xyz.Now let me tell you xyz is a “GREAT” company and very profitable indeed and there is an 80/20 split on the good people and the shitheads that work here at xyz.This group inhouse is managed by staff in another state (Which are great people and strong management)but are being snowjobbed and do not know it by a staff member here at xyz.This individual comes in late ,leaves early anywhere from 1-4 hours almost every daY (Especially Fridays …. Anyhoo this does not directly effect my position until management comes to me and asks where is so and so ?