The Tasmanian Government is seeking to change anti-discrimination laws to protect freedom of religion ahead of the same sex marriage plebiscite.

The state's most senior Catholic was taken to the anti-discrimination commission by a transgender woman last year who complained about the church's Don't Mess With Marriage booklet, although the claim was later dropped.

But a marriage equality advocate says the booklet contained some humiliating statements and they're worried that the changes to anti-discrimination laws could allow hate speech.

FEATURED:

Julian Porteous - Catholic Archbishop of Hobart

Rodney Croome - marriage equality advocate