If sources are not readily available for answer writing in criminal law scenario questions, you can still prepare by focusing on the basics of criminal law and familiarizing yourself with the relevant statutes, case law, and legal principles. It may be helpful to review past exams and practice writing answers to hypothetical scenarios. You can also seek guidance from professors or other experts in the field, or join study groups or online forums to discuss and share knowledge with others. Additionally, it may be useful to attend seminars or workshops on criminal law or consult study materials and textbooks that cover the subject in depth. Ultimately, consistent practice and a thorough understanding of the law will be key to success in answering criminal law scenario questions.