Dear Sir,

I need to know it is true that a chinese people who is currently staying in china and would like to oversea to bring a cash money at least USD5,000/-. And if this true it is a requirement by the check point immigration at the international airport. What a reason behind all this if she/he needs to bring a lot of cash outside. And I feel that it is not safe.
What exactly the BTA form, do the the person needs to declare how much money she/he will bring outside from China to other countries?

Your response to all above are really appreciated and thank you so much for your time.