Google's privacy policy is set to be investigated by the Information Commissioner's Office (ICO) to see if it's compliant with current UK law.
The move comes after data watchdogs in five other European nations - France, Germany, Italy, the Netherlands and Spain - announced investigations into Google's privacy policy.
"The ICO has launched an investigation into whether Google's revised March 2012 privacy policy is compliant with the Data Protection Act," read a statement.
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"The action follows an initial investigation by the French data protection authority CNIL, on behalf of the Article 29 group of which the ICO is a member. Several data protection authorities across Europe are now considering whether the policy is compliant with their own national legislation.
"As this is an ongoing investigation it would not be appropriate to comment further."
CNIL, the French data watchdog, has expressed its concerns that despite meeting with Google last month, the web giant has taken no significant measures to bring its privacy policy into line.
"On 19 March 2013, representatives of Google were invited at their request to meet with the taskforce led by the CNIL and composed of data protection authorities of France, Germany, Italy, the Netherlands, Spain, and the UK. Following this meeting, no change has been seen," said a CNIL statement.
Google's linked data policy, which came into effect on March 1, allows the company to collect information about its users across all its products, services and websites and store it in one place. This has been criticised by organisations ranging from CNIL to Microsoft, all of whom have expressed concerns that it's difficult to tell which data Google collects and how it's used.
The web giant has previously defended its privacy policy, even releasing a statement to defend it earlier this year.
"Our privacy policy respects European law and allows us to create simpler, more effective services. We have engaged fully with the CNIL throughout this process, and we'll continue to do so going forward."
