Under certain circumstances, California Family Code 6340 allows a protected party to serve the restrained party by alternate means (mail, publication etc.). This occurs when the court finds that there has been diligent efforts to serve the restrained party with the temporary restraining order and also when there is reason to believe that the restrained party is attempting to evade service. If the court finds the above exists it should continue the hearing to a date when the restrained party can be given notice by the alternate means.
Read more about types of Restraining order and do’s and don’ts here
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