Political lobbyists and paid employees of political parties or MPs would be banned from entering the NSW Parliament for five years after they cease work, under a proposal the Shooters and Fishers Party argues would help restore trust in politics.

Robert Borsak, one of the two Shooters and Fishers Party MPs who share the balance of power in the NSW upper house, called for the ban on Friday following the interim report of an expert panel examining changes to election funding laws.

"Real-life experience": Robert Borsak.

The panel, commissioned after allegations of rorts aired at the Independent Commission Against Corruption, has indicated it is set to recommend to Premier Mike Baird that breaches of donations laws should be punishable by a maximum 10 years in prison.

When its final report is delivered in December, it is also likely to recommend an extension to the time in which prosecutions can be commenced from three to 10 years, and online, real time disclosure of political donations.