A Brisbane trial has collapsed after a 65-year-old woman vanished from her own fraud case following a wild scuffle between her daughter and court security.

Four councils, including Brisbane, are running food recycling trials for apartments, resorts and retirement homes.

An investigation has found senior industrial relations figure Helen Burgess was “blatantly” dishonest about her relationship with a successful job applicant.

Jarrod Bleijie wrote to two developers, telling them to scrap the cheaper components of their projects and replace them with standard market-rate housing.