Subpoena without a lawyer???

I have been charged with a DUI in California. Right now, I am planning on pleading not guilty and will ask the court for an appointed attorney since I cannot afford 6-8 grand. I have one last piece of evidence to collect, and that would be the video tape from the patrol car. I requested it, and was told I need a lawyer to subpoena the tape. Is there a process or way I can approach the courts to file this subpoena myself? Or, should I wait until my arraignment and have my public defender do it then? I'd like to have it now, as to "compare" notes before I put my foot in my mouth.
Thanks, Robert.

Are there no law students or lawyers here that know this one??????
How can I subpoena evidence myself?
I have only studied business law, and nothing in my texts have info of this.
HELP! ;o)

California code


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I found to subpoena evidence such as video tape, it cannot be requested until after an arrangement. Once a trial has been set, then it may be requested from the District Attorney's office where the case will be handled. This can be done without a lawyer.
Thanks for all the replies.