Question: Who conducted the election in which Steve Kamper was elected to the New South Wales Legislative Assembly as the member for Rockdale for the Australian Labor Party?

Context paragraphs:
Tanya Gadiel: Tanya Rachelle Gadiel, "née" Barber (born 21 November 1972), a former Australian politician, was a member of the New South Wales Legislative Assembly between 2003–2011, representing the electorate of Parramatta for the Australian Labor Party.  During her term in Parliament, Gadiel was Deputy Speaker of the New South Wales Legislative Assembly in the Kristina Keneally Labor Government.  On 8 December 2010, Gadiel announced that she will not contest the 2011 state election.

Protestant Labor Party: The Protestant Labor Party was a minor Australian political party that operated mainly in New South Wales, Queensland and South Australia in the 1920s and 1930s.  It was formed by Independent MP Walter Skelton, member for Newcastle in the New South Wales Legislative Assembly 1922–27.  In 1925 he was elected to the Assembly under the Protestant Labor label, but when single-member constituencies were re-introduced in 1927 he was defeated in Wallsend.  At the 1927 South Australian election, Thomas Thompson was elected under the Protestant Labor Party banner to the two-member seat of Port Adelaide but failed re-election in 1930.  In 1938 the party elected George Morris to the Legislative Assembly of Queensland as the member for Kelvin Grove, but the party was soon moribund and he sat out his term as an independent.  The party was formed in an attempt to counter the perceived Roman Catholic dominance within the ALP.  Aside from the sectarian issue, its policies were broadly in agreement with the ALP.

Bill Lamb: William Henry Lamb (5 January 1889 – 8 January 1964) was an Australian politician.  He was a member of the New South Wales Legislative Assembly from 1938 until 1962 and, variously, a member of the Australian Labor Party (ALP) and the Lang Labor Party.  He was the Speaker of the New South Wales Legislative Assembly between 1947 and 1959.

List of New South Wales state elections: This article provides a summary of results for elections to the New South Wales Legislative Assembly, the lower house in New South Wales's bicameral state legislative body, the Parliament of New South Wales, which came into being in 1856 when New South Wales achieved responsible government.  New South Wales politics were initially non-partisan, with individual Members of Parliament choosing to align either with the Government or the Opposition.  This changed at the 1887 election where, for the first time, candidates were members of official political parties.  The first two major parties to form were the Free Trade Party and the Protectionist Party.  The 1887 election saw the 79 members of the Free Trade Party elected form the government with the 37 elected Protectionist Party members form the opposition.  The next election saw the Free Trade Party retain government but with a reduced majority.  The 1891 saw the Australian Labor Party for the first time.  These three parties then fought out the next two elections through to 1898.  After Federation in 1901, the Free Trade Party changed their name to the Liberal Reform Party with the Protectionists becoming the Progressive Party.

Clarrie Martin: Major Clarence Edward Martin (2 February 1900 – 5 September 1953) was an Australian politician and a member of the New South Wales Legislative Assembly from 1930 until 1932 and from 1939 until his death in 1953.  He was variously a member of the Australian Labor Party (NSW), the Industrial Labor Party and the Australian Labor Party (ALP).  He was the Attorney-General of New South Wales from 1941 until 1953 and also held the position of Minister for Transport for six months prior to his death.

Frank Sartor: Francesco Ernest "Frank" Sartor AO (born 9 November 1951) a former Australian politician, was New South Wales Minister for Climate Change and the Environment and Minister Assisting the Minister for Health (Cancer) between 2009 and 2011.  He was a Member of the New South Wales Legislative Assembly representing Rockdale for the Australian Labor Party between 2003 and 2011.  Sartor has previously been Minister for Planning, Redfern Waterloo and the Arts, and Minister for Water and Utilities in the Iemma and Carr governments.  Before being elected to the New South Wales Parliament, Sartor is the second longest-serving Lord Mayor of Sydney after Clover Moore, having held the post for nearly 12 years from September 1991 to March 2003.  Sartor retired from politics at the 2011 state election.

Australian Labor Party (New South Wales Branch): The Australian Labor Party (New South Wales Branch), also known as NSW Labor, is the New South Wales branch of the Australian Labor Party.  The parliamentary leader is elected from and by the members of the party caucus, comprising all party members in the Legislative Assembly and Legislative Council.  The party factions have a strong influence on the election of the leader.  The leader's position is dependent on the continuing support of the caucus (and party factions) and the leader may be deposed by failing to win a vote of confidence of parliamentary members.  By convention, the premier sits in the Legislative Assembly, and is the leader of the party controlling a majority in that house.  The party leader also typically is a member of the Assembly, though this is not a strict party constitutional requirement.  Barrie Unsworth, for example, was elected party leader while a member of the Legislative Council.  He then transferred to the Assembly by winning a seat at a by-election.

Steve Kamper: Stephen Kamper (born in Sydney, New South Wales) is an Australian politician who was elected to the New South Wales Legislative Assembly as the member for Rockdale for the Australian Labor Party at the 2015 New South Wales state election.

New South Wales state election, 2015: A general election for the 56th Parliament of New South Wales (NSW) was held on Saturday 28 March 2015.  Members were elected to all 93 seats in the Legislative Assembly using optional preferential voting.  Members were also elected to 21 of the 42 seats in the Legislative Council using optional preferential proportional representation voting.  The election was conducted by the New South Wales Electoral Commission.

Fred Stanley (politician): Fred Stanley (12 October 1888 – 29 November 1957) was an Australian politician.  He was a member of the New South Wales Legislative Assembly from 1927 until 1950.  During his parliamentary career he was, at various stages, a member of the Australian Labor Party (ALP), the Australian Labor Party (NSW) the Australian Labor Party (Non-Communist) and an Independent Labor member of parliament .

Supporting paragraphs: Steve Kamper New South Wales state election, 2015
Answer: New South Wales Electoral Commission