China-based private investigators receive prison terms

Managing IP is part of Legal Benchmarking Limited, 1-2 Paris Gardens, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Cookies Settings

China-based private investigators receive prison terms

Peter Humphrey and Yu Yingzeng, the China-based investigators hired by GlaxoSmithKline to investigate corruption allegations, have been sentenced to 30 months and 24 months respectively for illegally obtaining private information

In a one-day trial, the Shanghai Intermediate Number One Court found that the British Humphrey (right) and Yu, his American wife, broke the law by illegally obtaining private information in the course of their investigations. In addition to the jail sentences, Humphrey received a RMB 200,000 fine ($32,500), while Yu was fined RMB 150,000. Humphrey will also be deported.

Humphrey and Yu have 10 days to appeal.

Donald Clarke of the Chinese Law Prof Blog has a copy of the Chinese language transcript posted by the court.

Humphrey and Yu are the founders of the private investigation firm ChinaWhys. In April 2013, GlaxoSmithKline hired the firm to investigate an anonymous email alleging that GSK employees were engaging in an elaborate bribery scheme. The detailed allegations also contained a video of GSK China head Mark Reilly in what appeared to be his Shanghai apartment.

In July 2013 Chinese authorities arrested Humphrey and Yu. Humphrey soon after issued an apology on Chinese television for his company's actions and said that he never intended to break Chinese law. GSK also admitted that its China-based executives had engaged in illegal activities.

The ChinaWhys case has been closely watched by international companies, as many regularly rely on private investigators to conduct due diligence on investments, business partners and other aspects of its business. This is especially true in IP enforcement, where companies often engage investigators to track down the sources of counterfeit goods.





more from across site and SHARED ros bottom lb

More from across our site

Armstrong Teasdale’s Jim Heinen Jr discusses the challenge of balancing billables, business development and family life and explains why not all patent lawyers are science nerds
From cross-border jurisdiction to the end of the transitional period, Powell Gilbert’s Ioana Sabau and Bryce Matthewson predict the biggest talking points ahead
A wave of office launches and lateral hires reflect the draw of patent disputes, but booming AI, semiconductor and data centre markets are offering an even bigger IP opportunity
The hire of Frederick Nicolle as a partner continues Pinsent Masons' expansion while reducing Simmons’ patent prosecution offering in London to zero
The expansion into Granada forms part of a national ‘decentralisation’ strategy focused on providing proximity to research and tech businesses away from traditional hubs
Three successive wins have got the firm eyeing additional opportunities as ITC work booms
While many firms remain focused on generative AI, recent hires and practice launches suggest the next battle may be for lawyers who understand how AI is moving into the physical world
The explosion of data centres has prompted patent pool operators to create new licensing opportunities
The court struck out copyright claims brought by Ladbrokes owner Entain, saying that ownership details should have been completed before litigation began
Düsseldorf has overtaken Munich as the UPC's busiest division, while firms including Winston Taylor, Clifford Chance, and Hoyng Rokh Monegier featured in disputes involving Abbott, Essity, Amazon and Hurom
Gift this article