But he was released on bail last month with strict conditions, including not accessing the internet and not going within 500 metres of Masjid Al Noor and Linwood Mosque in Christchurch.
However, he appeared from custody before Youth Court Judge Jane McMeeken this morning on a new charge of breaching his bail conditions.
His lawyer Moana Cole said there had been a death in the family and the teen had been using marijuana.
Cole said a drug-screening test would be ordered and asked for a bail application to be heard on Thursday.
Judge McMeeken said she was sorry to hear about the family death but told the boy that smoking cannabis would not help, and nor would breaching his bail conditions.
He was remanded to a youth justice facility until Thursday.