POLICE will this week remain at the scene of a large haul of marijuana plants at Coominya, north-west of Fernvale, in the Brisbane Valley.
A search of the bushy Wattle Rd property last Friday morning allegedly uncovered more than 900 plants - about a third of which had been dried or were in the process of being dried for sale.
Police seized the dried plants, filling several 200-litre plastic drums, while the remaining plants were pulled from the ground and burned on Saturday, with assistance from the Queensland Fire and Emergency Service.
The Coominya property will remain under police guard this week, while detectives from Ipswich oversee further searches before the investigation is finalised.
Charges have already been laid against a 69-year-old grandmother, her two sons aged 37 and 42, and her grandson, aged 17.
The four family members were charged on Friday afternoon with trafficking marijuana.
They faced Ipswich Magistrates Court on Saturday morning.
Of the four, only the 17-year-old accused was allowed bail. The others will remain in custody until their next court appearance.