There were dramatic scenes at a controversial public inquiry into Labor's franking credits policy on Friday after a man yelling "this process is a sham" was forcibly removed by fellow attendees at the beginning of the hearing.

Liberal MP Tim Wilson - whose running of the committee has come under intense scrutiny as he leads the roadshow around the country - was forced to remind the packed room on Sydney's north shore that "nobody should attack other people who are here".

An attendee speaks out against changes to franking credits at the public hearing at Chatswood, Sydney. Credit:James Brickwood

More than 200 people, mostly older retirees, crammed into an upstairs hall at The Chatswood Club to voice their displeasure with Labor's plan to abolish refundable franking credits to save nearly $6 billion a year.

Over two hours of three-minute speeches, only one person spoke in favour of Labor's policy, while dozens said they would not vote Labor at the expected May election because of the dividend imputation policy.