You're reading it correctly--and smart people can disagree, if Professor Bala feels this is a good amendment.
The position is as set out in the paper. We're opposed to the amendments for the reasons we've set out. It would certainly be a lot easier to accept if it said something like “will commit a serious violent offence” or “will commit a violent offence”. That would make us more comfortable in defining the situations where a young person should be detained before trial.