Jury Duty

I got called for jury duty today. Its for a criminal case which freaks me out. But it looks like that because I'm a student I can get out of it, which is good because its a Monday that I am supposed to go in and thats the day I have all my classes, if it was a Tuesday or Thursday I could go but not on a Monday. My mom is so jealous, she wanted me to send them a note saying she'd do it but I don't think she wants to be on a criminal case jury, what if there are graphic photos? She said it wouldn't be bad, that it would just be like CSI but I told her no it wouldn't because these would be real photos. I kinda wouldn't mind doing it, depending on the case but I can't afford to miss school.