in such cases where there are reasonable grounds to believe that the release is likely to bring the juvenile into association of any known criminal or expose him to moral, physical, or psychological danger, or that his release would defeat the ends of justice. The gravity of the offence is not a relevant consideration for declining the bail to the juvenile. A juvenile can be denied the concession of bail if any of the three contingencies specified under Section 12(1) of "JJ Act, 2015" is available. A similar view has been taken in cases of Manoj Singh v. State of Rajasthan1, Lal Chand v. State of Rajasthan2, Prakash v. State of Rajasthan3, Udaibhan Singh @ Bablu Singh v. State of Rajasthan4, Shiv Kumar @ Sadhu v. State of U.P.5, Maroof v. State of U.P.6. 15. The term 'known criminal' has not been defined in "the Juvenile Justice Act" or Rules framed thereunder. It is a well-settled rule of interpretation that in the absence of any statutory definition of any term used in any particular statute the same must be assigned meaning as in commonly understood in the context of such statute as held by Supreme Court in Appasaheb v. State of Maharashtra, (2007) 9 SCC 721 in para 11 as under: (SCC p. 726 para 11)