We now have a new family member that is a beautiful baby girl

I have a few questions regarding this and will be very grateful.
Q1: Which form do we need to use to apply for baby's dependant visa?
Q2: Do we need to inform UKBA about our baby? If yes, is there any special form for it?
Q3: Do we need to register her with police and/or update our police certificates? (we are required to do so)
Thank you very, very much!!
Cheers.
Ellie