Victorian parliament has the power to expel embattled independent MP Geoff Shaw and any legal challenge is likely to fail, according to legal advice from an eminent constitutional expert.

Advice provided to Labor by Professor George Williams says that the Victorian parliament possess the power to expel an MP.

"This power may be exercised at the discretion of the House, including to expel a member for contempt," Mr Williams says.

"If a resolution expelling a member is expressed in general terms, such as providing for expulsion for 'a serious breach of privilege', any legal challenge can be expected to fail."