According to Wall Street Journal columnist Holman Jenkins Jr., the Consumer Financial Protection Bureau's requirement for payday lenders to run full credit checks on prospective borrowers (average loan US$392) to test sources of income, need for the loan, and ability to re-pay it will - perversely - make it "hard or impossible" to serve those customers who borrow when necessary but then promptly repay. Instead, the industry will aim to retain habitual users, those who take out loans many times a year and get caught in "debt traps," continually rolling over what are supposed to be short-term, high-margin loans. Research by tech analyst outfit Juniper Research found smartphone and tablet-based mobile point-of sale terminals will take on a much bigger role in businesses, handling 40 per cent of all retail transaction value by 2021, up from an expected 12 per cent in 2016. Juniper forecast that the use of mPOS systems would account for more than one in three POS terminals by 2021, driven by larger retailers adopting mPOS as part of an array of point-of-sale options. mPOS is playing a key role in enabling smaller merchants in emerging markets, particularly across India, Southeast Asia and Latin America, to accept card payments and grow their businesses. Spanish police have searched Banco Santander SA's headquarters and taken away documents as part of an investigation into alleged money-laundering and tax evasion, the Wall Street Journal reports.  On Friday, Spanish police sought the documents at the request of a judge investigating tax evasion and money laundering, a spokesman for Spain's National Court said. The operation took place at Santander's headquarters, in the town of Boadilla del Monte, on the outskirts of Madrid. Shenzhen Qianhai WeBank, China's first non-brick-and-mortar bank, plans to raise 1.2 billion yuan from six investors, sources told Chinese online news service Caixin. Among the investors are Tencent, which currently owns 30 percent of the bank and is planning to buy another 365 million yuan worth of the shares if the regulator gives the green light, they said. The latest round of fundraising comes as the bank scrambles to turn a profit in the online-only finance sector amidst strict regulations and stiff competition from traditional banks. WeBank lost money in 2015, its first year in operation, but did not reveal details of the loss.