Investigations into high-profile business people show just how dangerous it is to be rich in China
'Let a hundred heads roll' may not have as poetic a ring as Mao's 1956 'let a hundred flowers bloom' movement, which lured out free-thinkers only long enough to mow them down in a subsequent 'anti-rightist' campaign.
But it is a reasonable enough moniker for the ongoing series of investigations into Shanghai businessman Chau Ching-ngai, former BOC Hong Kong (Holdings) chief executive Liu Jinbao and a host of other prominent figures.
The investigations also illustrate just how dangerous it is to be rich in China, and how convoluted cross-border corporate investigations can get as the commercial ties binding Hong Kong to the mainland grow ever tighter.
What began as a supposedly routine transfer of Mr Liu back to headquarters in Beijing - news of which was first reported by the South China Morning Post on May 26 - has escalated into a multi-dimensional investigation encompassing the Bank of China and its Hong Kong-listed subsidiary BOCHK, a private Shanghai property conglomerate listed in Hong Kong, and regulatory bodies on both sides of the border.
Within a week of Mr Liu's transfer, shares in Chau's Hong Kong-listed flagship, Shanghai Land Holdings, were plummeting on rumours that its boss had been detained by investigators in Shanghai - speculation that was eventually confirmed by a Shanghai government spokeswoman on June 3.