THE Attorney-General's Chambers is to decide next month whether to prosecute those involved in Monday's Aberdeen canopy collapse which killed an 80-year-old woman and injured 12 other people including a two-month-old baby. Police confirmed yesterday they will send a full report on the tragedy to the Attorney-General by the end of this month, once they receive a preliminary report from the Buildings Department. Police have interviewed the contractor, who was carrying out alterations to the first floor New Best Restaurant when the canopy collapsed, but refused to name the firm. The restaurant owner has also been interviewed. ''They have been very open with us,'' said Assistant Divisional Commander, Crime at Aberdeen police station, Gordon Wan. Relatives of the victims said yesterday they would team up to fight for compensation and to find out who was responsible. They also demanded the Government provide them with emergency relief funds. The three daughters of Tsui Mo-yee, who was killed in the accident, said the Government had failed to ensure the safety of the public. Tsui Ho, who witnessed the accident, said the Government should have sealed off the area during the renovations.