A "summons" is simply an official order requiring a person to attend court. An "arraignment" is the first appearance in a criminal proceeding. Several things happen at this hearing. First, the judge is required to make sure you understand the relevant Constitutional rights, such as the right to trial and the right to have an attorney. Second, you must inform be informed of the charges against you and the consequences if convicted. In the case of Possession of Marijuana and Possession of Paraphernalia, each charge carries up to 90 days and a $1000 fine and mandatory minimums of 1 day and $250. Third, the court will take your plea. This is always "not guilty" at arraignment unless you have contrary advice from an attorney who has reviewed all of the evidence in the case. Finally, if the judge finds there is probable cause, he or she may place conditions of pretrial release on you. This can be anything from staying out of trouble while the case is pending to high bail, or anything in between. For first time misdemeanor possession charges bail is almost never ordered.
For a medical marijuana defense you need to be either a patient or a designated provider. Consult an attorney that understands this defense to see if you qualify.
The answer provided is for educational purposes only. It does not constitute legal advice or create an attorney-client relationship. You should consult an attorney for legal advice regarding the facts of your specific case and designed to help you with your personal needs.