No, I do not agree with this statement. Public revenue is the aggregate income, with the government, comes through various sources.
These sources are classified as tax-revenue and non-tax revenue.
Tax revenue is a compulsory contribution from people to government without getting any special benefits to tax-payers.
So, tax revenue is the major source of revenue for the government.
However, fines and penalties are sources of non-tax revenue.
The government imposes fines and penalties only on those who violate the laws of a country. So, the income from this source is very small.