Olahraga bela diri merupakan olahraga yang erat kaitannya dengan kekerasan fisik. Kekerasan dalam olahraga bela diri dapat dilakukan dan dapat juga menimpa siapa saja termasuk Anak, seperti dalam Putusan Pengadilan Negeri Klaten Nomor 6/Pid.Sus-Anak/2021/PN Kln yang penulis teliti. Dalam putusan tersebut, baik korban maupun pelaku masih dikategorikan Anak. Walaupun pelaku tindak pidana adalah Anak, hal tersebut tidak dapat menghapus pertanggungjawaban pidananya. Hanya saja terdapat perbedaan perlakuan antara anak dengan orang dewasa selama menjalani proses peradilan pidananya. Terkait hal tersebut, penelitian ini akan membahas tentang kesesuaian penerapan hukum pidana dalam Putusan Pengadilan Negeri Klaten Nomor 6/Pid.Sus-Anak/2021/PN Kln dengan Undang- Undang Sistem Peradilan Pidana Anak dan Undang-Undang Perlindungan Anak serta bagaimana perlindungan hukum terhadap Anak sebagai pelaku kekerasan dalam putusan tersebut.
Jenis penelitian yang digunakan oleh penulis adalah penelitian yuridis normatif atau doktrinal. Data dalam penelitian ini diperoleh dengan studi kepustakaan (library research) sehingga data penelitian berasal dari data sekunder yaitu Putusan Pengadilan Negeri Klaten Nomor 6/Pid.Sus-Anak/2021/PN Kln.
Hasil dari penelitian menunjukan bahwa penerapan hukum pidana berdasarkan Putusan Pengadilan Negeri Klaten Nomor : 6/Pid.Sus-Anak/2021/PN Kln berkaitan dengan hukum pidana formil dan hukum pidana materil telah sesuai, karena prosedur beracara dan penerapan pasal dalam putusan tersebut bersesuaian dengan KUHAP, Undang-Undang Sistem Peradilan Pidana Anak, dan Undang-Undang Perlindungan Anak. Kemudian, terkait perlindungan hukum terhadap anak, pemenuhan hak-hak anak belum dilaksanakan secara optimal.

ABSTRACT:
Martial arts are sports that are closely related to physical violence. Violence in martial arts can be committed and can also affect anyone, including a child, as stated in the Klaten District Court Decision Number 6/Pid.Sus-Children/2021/PN Kln which the author examined. In this decision, both victims and perpetrators are still categorized as children. Even though the perpetrator of the crime is a child, this cannot erase his criminal responsibility. It's just that there are differences in treatment between children and adults during the criminal justice process. In this regard, this study will discuss the suitability of the application of criminal law in the Klaten District Court Decision Number 6/Pid.Sus-Anak/2021/PN Kln with the Law on the Juvenile Criminal Justice System and the Child Protection Law as well as forms of legal protection for children. as perpetrators of violence in the decision.
The type of research used by the author is normative or doctrinal juridical research. The data in this study were obtained by library research (library research) so the research data came from secondary data, namely the Klaten District Court Decision Number 6/Pid.Sus-Anak/2021/PN Kln.
The results of the study show that the implementation of criminal law is based on the Klaten District Court Decision Number: 6/Pid.Sus-Anak/2021/PN Kln relating to formal criminal law and material criminal law is appropriate because the procedural procedures and application of the articles in the decision are following the Criminal Procedure Code, the Juvenile Criminal Justice System Law, and the Child Protection Act. Then, related to the legal protection of children, fulfillment of children's rights has not been implemented optimally.