More than one in three companies have no formal whistleblowing hotlines in their overseas offices, with local culture providing the biggest roadblock to establishing a successful whistleblowing programme.

This was one of the findings from a survey of 72 senior legal professionals, conducted by Legal Week in association with global investigations firm Kroll. The majority of the respondents (60%) were either general counsel or legal director level, with most hailing from the financial services sector, followed by the technology and professional services sector. 85% of respondents were UK based, with 71% of these maintaining overseas offices.