Abstract
Warrant is issued through the judgement of judicial officer. Arrest, search and/or seizure ordinarily is executed upon the warrant. But ex post facto the has a complaint about the warrant itself and/or the sufficiency and veracity if the required materials dor the warrant. In this paper the author considers the statistical circumstances of issuing warrants in Japan and recognizes that criminal defendants rarely make motion to complain of the warrant because it is difficult for them to access to the related documents with warrant in spite of the law of Japanese criminal procedure which affords to them opportunities judicial hearing to issued warrant. But the author thinks Japanese Constitution secures them procedural reight of judicial review for issued warrant and right of access to the related papers. The contents of this essay are as follows: I Introduction II Judicial Hearing for Issued Warrant in criminal Procedure III Defendant's Access to Related Documents with Warrant IV Warrant Requirement in Consitution of Japan V Conclusion
