New sales rules kick in New trade descriptions rules for Hong Kong retailers and service providers kick in as part of a drive to stamp out misleading sales practices. Previously, the offences under the Trade Description Ordinance covered only goods but not services. Repeat offenders and those who target vulnerable buyers face criminal prosecution, and a team of 147 customs officers will be deployed to ensure the rules are obeyed. G20 ministers talk jobs in Moscow Finance and labour ministers from the G20 countries gather in Moscow for the first meeting of its kind aimed at stimulating job creation through investment and on the development of financial institutions. Russian President Vladimir Putin is looking to boost the profile of the G20 during the Russian presidency of the organisation, which will culminate in its biggest ever summit in St Petersburg in September. CERN offers glimpse at Large Hadron Collider The European Organisation for Nuclear Research (CERN) gives a tour of its US$10 billion Large Hadron Collider, which began a two-year shutdown in March so engineers could revamp it to reach maximum energy levels that could lead to more stunning discoveries following the detection of the so-called "God particle". CERN is also to provide a research outlook beyond the atom smasher's reopening in early 2015. Ex-Taiwanese premier visits city Taiwan's controversial former premier Hau Pei-tsun pays a visit to Hong Kong to give a lecture on Chinese-style democracy at City University. Hau, a former army commander and top aide to Taiwanese president Chiang Kai-shek, served as premier for two and a half years until 1993. Supporters of Hau took to the streets and demanded he be kept on when news emerged that he was to leave the Taipei government. Green forum starts in Guizhou China's only state-level international forum devoted to ecology and civilisation kicks off in Guiyang , capital of Guizhou . The Eco-Forum Global 2013 meeting brings together hundreds of ecological experts, NGOs and business leaders, as well as politicians from home and abroad. The theme for the three-day conference is "building eco-civilisation: green transformation and transition". Bollywood superstar faces death crash trial One of Indian cinema's biggest stars goes on trial for homicide over his involvement in a fatal car accident a decade ago. Salman Khan, who has appeared in more than 90 films, will be tried in Mumbai after a previous charge of causing death by negligence was upgraded. One man was killed and three injured when Khan allegedly rammed his car into homeless people sleeping on a Mumbai sidewalk in 2002.