Eight members of the Congressional Bi-partisan Privacy Caucus have sent a letter to Google CEO, Larry Page, requesting information on how Google Glass handles privacy issues.

Google Glass is basically an accessory worn on a person’s face and places a small computer screen above one eye, and connects wirelessly to a smartphone using Bluetooth technology. A heads-up display with facial recognition and eye-tracking technology can show icons or stats hovering above people one recognizes, give directions as one walks and take video from one’s point of view.

The device is currently available to fewer selected consumers and developers that are testing Glass for $1,500 and it is expected to be released to the public sometime in 2014.

The letter poses eight questions to Google about preventing the device from unintentionally collecting data about the user/non-user without consent, including through the use of facial-recognition technology. “We are curious whether this new technology could infringe on the privacy of the average American,” it said in the letter. “Because Google Glass has not yet been released and we are uncertain of Google’s plans to incorporate privacy protections into the device, there are still a number of unanswered questions that we share.”

The congressional members also ask whether Google is building safeguards so that data stored on the device can’t be accessed by someone other than the owner and if it is true that Google Glass would be able to use Facial Recognition Technology to unveil personal information about whoever and even some inanimate objects that the user is viewing. Furthermore, concerns have been raised weather Google will take steps to deal with the privacy of non-users when a Glass user is nearby and with revising its privacy policy to recognize the sensory functions present in Google Glass.

The team behind Google Glass defended its creation against privacy worries and said that privacy was top of mind as we designed the product.

Google has been given until 14 June to address its reply.