Why did Australian miners protest before the Eureka Stockade?

Miners in the Australian goldfields protested prior to the Eureka Stockade due to several deep-seated grievances against the colonial government.12

The primary causes of their anger included:

• Exorbitant License Fees: Miners were required to pay a high monthly fee of 30 shillings for a prospecting license, regardless of whether they had actually found any gold.12
• Police Brutality and Corruption: The police force, often referred to as "joes" or "traps," was notorious for corruption and for using brutal, harassing methods while enforcing the license system.12
• Lack of Political Representation: Miners were frustrated that they had no right to vote and no representation in the legislative councils.12
• Injustice: Tensions were further inflamed by the acquittal of the alleged killers of a miner named James Scobie, which led to widespread distrust of the government’s judicial processes.2

These issues led miners to form the Ballarat Reform League to petition for change. When their demands were ignored and government forces were reinforced, the situation escalated into the armed rebellion of 1854.12