I'm with Rob. It is INCREDIBLY unwise to do this without legal counsel. Prosecutors can change the meaning of your words very easily and you could go from innocent bystander to coconspirator in the blink of an eye. Seriously! This is why your father wisely does not want you involved. He's making sense here.
Plus, you're a minor, which in most cases means you cannot fully participate in anything legal without your parents. Your statement could be of no help to him anyway. You are under 18, which means that what you say means less in court because the law does not consider you to be old enough to speak for yourself. Your parents could possibly have your statement nullified if it was given without their consent.
If you don't write a statement, his defense attorney would likely subpoena you, which means he could get a court order to force you to testify. Then you can say you weren't forced, but if you get subpoenaed your parents would probably get legal advice before your court appearance, and you could be coached on what to say and what not to say by someone who is familiar with the charges, the law, and the particulars of the case.
A lot of times, doing something legal without an attorney is like having surgery and playing the surgeon.
Just by reading my and Rob's responses, I hope you can see that this "little" thing you want to do is actually quite major, and could have repercussions for the rest of your life. Love yourself more than you love your bf. Your father understands things you don't, so please listen to him.
Answered Apr 25, 2013
Edited Apr 25, 2013