Criminal and cyber crimes

one girl who was in live in relation with her boyfriend ignored to marry at last. and now she is married from past 2 years. Her boyfriend now is troubling her husband sending him mails and her pics that were clicked past with boyfriend. her marrital life is so getting disturbed. She has hired a lawyer now to deal with the case. Please let me know what are the sections in criminal laws and cyber laws that can protect her from ill will of her past boyfriend and her married life now.