Thanks for replying.
The appropriate basic charge ('Common Assault', 'ABH' or 'GBH') is determined by the extent of your brother's injuries. If, despite the glass breaking, he only suffered superficial cuts, 'Common Assault' might be the appropriate charge. (See paragraph 13 in the link below). If he required stitches (but the cuts were not otherwise serious') 'ABH' could be appropriate. (See paragraph 46). If he required a blood transfusion, 'GBH' would probably apply. (See paragraph 55).
Only 'GBH' can have 'with intent' (making it a 'Section 18' offence) added to the charge. (i.e. there's no such offence as 'ABH with intent'). If your brother's injuries were sufficient to merit a 'GBH' charge, see paragraph 65 for an indication of the type of factors which might add 'with intent'.
Here's the link:
http://www.cps.gov.uk...on/#Unlawful_wounding
Chris