Evidence of criminal gang activity. Admissibility of evidence of criminal gang activity on any relevant matter, §24-4-418. SUBPOENAS, §§24-13-20 to 24-13-29. Applicability of article, §24-13-20. Attorney of record. Authority to issue and sign, §24-13-21. Service upon, §24-13-24. Blank subpoenas. Availability on demand, §24-13-21. Business will suffer injury by production of books. Commission appointed to examine books, statement of accounts and entries. Adverse party dissatisfied with transcript, §24-13-6. Oath required, §24-13-5. Transcript of accounts and dealings with opposite party. Required, §24-13-5. Civil proceedings. Applicability of article, §24-13-20. Completed prior to service, §24-13-21. Conditional denial.