what impact did British convicts have on Australia?

Probably about the same as Scottish convicts sent to the colonies (before the US became the US).

http://www.google.com/search?q=british+convicts+australia&oq=british+convicts+australia&aqs=chrome..69i57j0l5.5704j0j7&sourceid=chrome&espv=210&es_sm=119&ie=UTF-8

Can i write that they helped establish Australia socially, politically, and economically? with supporting reasons

Yes.

okay, thank you

The impact of British convicts on Australia was significant and far-reaching. To understand the impact, we can explore the following points:

1. Penal Colony: In 1788, the British government established the first penal colony in Australia, which became known as New South Wales. This initial settlement served as a place to send convicts, helping to alleviate overcrowding in British prisons.

2. Population Growth: Over the next few decades, thousands of convicts were sent to Australia. This influx of convicts contributed to a rapid increase in the population, leading to the expansion of settlements and the development of infrastructure, such as roads, bridges, and buildings.

3. Labor Force: Convicts played a pivotal role in providing free labor, working on public projects and in developing agricultural industries. They were used to clear land, build infrastructure, and engage in various industries, such as farming, mining, and timber production. This convict labor became crucial in shaping the Australian economy.

4. Cultural Influence: The presence of convicts led to a mix of cultures and backgrounds in Australia. Convicts brought with them diverse skills, trades, and traditions. This cultural diversity ultimately contributed to the formation of a unique Australian identity and heritage.

5. Transformation of Criminal Justice System: The transportation of convicts to Australia marked an important shift in the British criminal justice system. Rather than imposing harsh sentences or capital punishment, the focus shifted towards transportation as a means of punishment and reform.

6. Redemption and Reintegration: For many convicts, transportation to Australia provided an opportunity for redemption and a chance to start anew. After serving their sentences, some convicts successfully reintegrated into society, leading to the growth of a free population in Australia.

To gather more specific information and in-depth analysis, you can explore historical records, books, academic articles, and research papers. Additionally, museums, historical societies, and libraries often hold valuable resources and exhibits related to the impact of British convicts on Australia.