How can I print my text messages from my iphone for a court case ?

One way is to take screenshots, transfer the screenshots to your computer and print from there.

To take a screenshot briefly press the Power/Lock button (top of phone) whilst holding the Home button (under the screen).

Try the computer apps PhoneView (Mac) or TouchCopy (Mac & PC):

http://www.ecamm.com/mac/phoneview/

http://www.wideanglesoftware.com/touchcopy/index.php

1. One finger press on the message to bring out the Copy | More.. | Speak label.

2. Select Copy

3. Open Notes or any document page app

4. One finger press on New Note page to bring out Select | Select All | Paste label

5. Select Paste

6. Tap Bottom Left Hand Box to bring out the Mail or Print label - choose your option