Question: What was the subject of an incident at a sports stadium in Perth, Western Australia?

full_context: Document 1: P. Coady: P. Coady (dates unknown) umpired one Test cricket match played between Australia and England in Melbourne on 2–4 January 1879. The match, which was won by Australia by 10 wickets, was notable for the first Test match hat-trick, achieved by Fred Spofforth of Australia. Coady's colleague was George Coulthard.
Document 2: Somerset County Cricket Club in 1979: Somerset County Cricket Club competed in four competitions in the 1979 season: the first-class County Championship; and three limited overs competitions — the Gillette Cup, the John Player League and the Benson & Hedges Cup. The county fared well in the limited-overs competitions, winning both the Gillette Cup and the John Player League (the first two trophies ever won by the club), although they were disqualified from the Benson & Hedges Cup when the TCCB deemed that they had brought the game into disrepute during a match against Worcestershire.
Document 3: West Australian Football Club: The West Australian Football Club, often referred to as West Australians or Wests, was an Australian rules football club based in Perth, Western Australia. Formed in 1886, the club was originally not associated with any competition, but entered the senior West Australian Football Association (WAFA) the following season. The club finished last in both its seasons in the competition, merging with the Victorian Football Club on 16 April 1889 to form the Metropolitan Football Club (now the West Perth Football Club).
Document 4: Australian cricket team in Australia in 1974–75: The 1974–75 Australians beat the touring England team 4–1 in the 1974-75 Ashes series. Labelled the "Ugly Australians" for their hard-nosed cricket, sledging and hostile fast bowling they are regarded as one of the toughest teams in cricket history. Don Bradman ranked them just after his powerful teams of the late 1940s, and Tom Graveney third amongst post-war cricket teams after the 1948 Australians and 1984 West Indians. The spearhead of the team was the fast-bowling duo of Dennis Lillee, whose hatred of English batsmen was well known, and Jeff Thomson, who outraged old fashioned cricketers by saying he liked to see "blood on the wicket". "Wisden" reported that "never in the 98 years of Test cricket have batsmen been so grievously bruised and battered by ferocious, hostile, short-pitched balls". "Behind the batsmen, Rod Marsh and his captain Ian Chappell would vie with each other in profanity", but the predatory wicketkeeper and Australian slip cordon snapped up most chances that came their way. Their batting line up was also impressive with the opener Ian Redpath spending over 32 hours at the crease in the series, followed by Rick McCosker, Ian and Greg Chappell, Doug Walters and Ross Edwards. Ironically, in the last Test of the series Lillee and Thomson were injured, the out of form England captain Mike Denness made 188 and England won by an innings.
Document 5: Subiaco Oval: Subiaco Oval ( ; currently known under naming rights as Domain Stadium, and colloquially as Subi) is a football stadium located in Subiaco, a suburb of Perth, Western Australia. The highest capacity stadium in Western Australia and one of the main stadiums in Australia, seating 43,500 people, the ground is the home of Australian rules football in Western Australia, being the home ground for the West Coast Eagles and Fremantle Football Club, the two Western Australian teams in the Australian Football League (AFL). The ground is also used for occasional West Australian Football League (WAFL) matches, including the competition's yearly grand final. The stadium has also hosted Perth Glory games, including two National Soccer League grand finals, international rules matches, rugby union games and rock concerts. It was the home ground for the Western Force between 2006 and 2009.
Document 6: ComBat: The ComBat was an aluminium cricket bat and the subject of an incident that occurred at the WACA cricket ground in Perth in December 1979.
Document 7: Umpiring in the 1958–59 Ashes series: The England team were very unhappy with the umpiring of the 1958–59 Ashes series, in particular the questionable actions of some bowlers in the Australian team. The televising of Test cricket was in its infancy and the notion of Test umpires using slow-motion replays or other modern techniques was considered absurd. Instead the umpires had to make judgements based on what they saw in a split-second, and honest mistakes were accepted as part and parcel of the game. However, touring teams sometimes felt that there was a natural bias towards the home team which led to some acrimony. Keith Miller thought "Mel McInnes, Colin Hoy and Ron Wright were our leading umpires in the 1954-55 M.C.C. tour of Australia, and I have no hesitation in saying that McInnes gave the finest exhibition of umpiring in a Test series that I have experienced". The England team thought well of him too, but in 1958-59 he lost the confidence of the England players and himself, appeared hesitant and gave some surprising decisions. In the Fourth Test he hesitated to give Ken Mackay out even after the batsman walked after snicking a catch off Brian Statham. Later Colin McDonald should have been run out when Fred Trueman flattened the stumps after his runner Jim Burke ran round the back of McInnes. McInnes gave him out, but then changed his mind and gave him not out as he had not seen whether Burke had made the run or not. On his next ball McDonald sportingly pulled his bat out of the way of the stumps to give Trueman "the easiest Test wicket I have ever taken". Trueman was affected again when he batted, given out caught by Wally Grout off Richie Benaud when he had dropped his bat and missed the ball. The England team became dispirited by the umpiring mistakes and, believing the officials to be against them, lost heart. As Fred Trueman wrote
Document 8: Perth Oval: Perth Oval (also known as nib Stadium under a naming rights agreement with nib Health Funds) is a sports stadium in Perth, the capital of the Australian state of Western Australia. Located close to Perth's central business district, the stadium currently has a maximum capacity of 20,500 people for sporting events and 25,000 people for concerts, with the ground's record attendance of 32,000 people set during an Ed Sheeran concert in 2015. The land on which the stadium was built was made a public reserve in 1904, with the main ground developed several years later.
Document 9: Umpiring in the 1970–71 Ashes series: The England team disputed several umpiring decisions in the 1970–71 Ashes series, Ray Illingworth, Geoffrey Boycott and John Snow in particular. After the series Boycott and Snow were called to a disciplinary hearing at Lords over their behaviour, and Illingworth and Snow never toured again. Only three umpires were used; Lou Rowan, who was most involved in the controversy, and his colleagues Tom Brooks and Max O'Connell who both debuted as Test umpires in the series. At the time, umpires had no recourse to slow motion replays and had to make decisions based on what they saw in a split second, with the benefit of the doubt always going to the batsman. As a result it was not uncommon for umpires to make mistakes, which over the course of a long series tended to cancel each other out. The best an umpire could do was to make an honest judgement based on what he saw.
Document 10: WACA Ground: The WACA (formally the WACA Ground) is a sports stadium in Perth, Western Australia. The stadium's name derives from the initials of its owners and operators, the Western Australian Cricket Association.
Document 11: Western Australian Athletics Stadium: The Western Australian Athletics Stadium is a sports stadium in Perth, Western Australia. It is the main facility for the sport of athletics in Perth. It was constructed to replace the ageing Perry Lakes Stadium nearby, which had been in use since the 1962 British Empire and Commonwealth Games. The stadium houses the head offices of Athletics Western Australia and is a major facility for athletes with the Western Australian Institute of Sport. The stadium is also used for soccer, with Subiaco AFC playing home games at the stadium from 2014.
Document 12: Western Australia cricket team: The Western Australia cricket team, nicknamed the Western Warriors, represent the Australian state of Western Australia in Australian domestic cricket. The team is selected and supported by the Western Australian Cricket Association (WACA), and plays its home games at the WACA Ground in Perth. The team mainly plays matches against other Australian states in the first-class Sheffield Shield competition and the limited-overs Matador BBQs One-Day Cup, but occasionally plays matches against touring international sides. Western Australia previously also fielded sides at Twenty20 level, but was replaced by the Perth Scorchers for the inaugural 2011–12 season of the Big Bash League. Western Australia's current captain is Mitchell Marsh, and the current coach is Justin Langer.
Document 13: Umpiring in the 1974–75 Ashes series: The main point of contention in the umpiring of the 1974–75 Ashes series was the intimidatory bowling of the Australian fast bowlers Dennis Lillee and Jeff Thomson. There were a few other issues, though there were the usual cases of batsmen being given out or not out despite the differing opinions of the players and umpire. At the time, umpires had no recourse to slow motion replays and had to make decisions based on what they saw in a split second, with the benefit of the doubt always going to the batsman. As a result it was not uncommon for umpires to make mistakes, which over the course of a long series tended to cancel each other out. The best an umpire could do was to make an honest judgement based on what he saw. Tom Brooks and Robin Bailhache were the umpires in all six Tests, but were junior for so important a series. Brooks having made his debut in the 1970–71 Ashes series and Bailhache in the First Test at Brisbane. Unusually for Australian umpires of the time Brooks had played First Class Cricket – he had been a lively fast-medium bowler – and as a result was more able to connect with the Test players, and was more forgiving of short-pitched deliveries which he saw as a natural part of the game. This helped England in 1970–71 when they had the fast bowlers John Snow and Bob Willis, but proved fatal for their batsmen in 1974–75.
Document 14: Ball of the Century: The Ball of the Century, also referred to as the Gatting Ball or simply That Ball, is the name given to a cricket delivery bowled by Australian spin bowler Shane Warne to English batsman Mike Gatting on Day Two during the first Test of the 1993 Ashes series (4 June 1993), which took place at Old Trafford, Manchester. With his first ball against England, in his first Ashes Test, Warne produced a spectacular delivery that bowled Gatting out. It became recognized as being of considerable significance in not just the context of the match or series, but in cricket in general in that it signalled the revival of leg spin bowling.
Document 15: West Perth Football Club: The West Perth Football Club, nicknamed the Falcons, is an Australian rules football club located in Joondalup, Western Australia. West Perth competes in the West Australian Football League (WAFL) and is the oldest existing Australian rules football club in Western Australia. Originally located at Leederville Oval, the team was relocated in 1994 to Arena Joondalup, a sports complex in the northern suburbs of Perth. The team's club song is "It's a Grand Old Flag" and its traditional rivals are East Perth.
ground_truth: ComBat