Brisbane City Council’s chairman has been accused of allowing bullying and being partisan during full council meetings, prompting calls for an investigation.

LNP councillor Angela Owen was elected in 2008 and started running the council meetings at City Hall in the role of chairman of the council when Margaret de Wit retired in 2015.

Opposition leader Peter Cumming wrote to the council’s chief executive Colin Jensen on Friday to formally complain about Cr Owen, describing her actions at a recent meeting as ‘ruthlessly biased’.