hi all,

i will be having my first baby girl soon,
and i will be hiring a yaya also,
since my wife and i are both employed so no time to watch them around during day time.
we've just had an idea to install hidden cameras in our house to watch if the yaya does good care to the baby,does it violate the law?
anybody has better suggestion and where to buy the facilities?
or u have similar experience to share with us?

thanks a lot!!