Have you met your friend in person, or is she someone you have only communicated with electronically that you met on a dating or social networking site?
The reason I ask this is that this conforms perfectly to the typical Ghana romance scam. You meet a person who claims to be in your country and sweeps you into a whirlwind romance, declaring love at almost warp speed. But before you can meet her she tells you that she has to go to Ghana, there to collect her inheritance from her father, which is a fortune in gold.
But then an emergency happens in Ghana -- the so-called arrest at Customs is one we hear all the time but there are many others just as popular. And all this really is is an excuse to convince you to wire money to Ghana for her so-called bail or her so-called lawyer.
Do not fall for this. If she's a US citizen stranded in Ghana, her lifeline is not you but the US Embassy in Accra, and they will see to it that she gets representation and her rights are protected. All you can do is wire money and more money and more money and more money and more money and more money to a woman who does not really exist for a crime that has never occurred to a so-called agent and/or a so called barrister who are all part of the scam.
If you don't believe me, feel free to upload her so called documents and her photos with your reply. Meanwhile, do not send her any money. Call the US Embassy in Ghana and report this. If she's there and in custody, they'll take care of this.