I think that you should remove `target="_blank"`here as well, most modern browsers remembers the value you've entered (in this case the email-field) if you go to a link and use the back button to go back. 
another thing, if you read the [specification about the label-element](http://www.w3.org/html/wg/drafts/html/master/forms.html#the-label-element) it says:
> Note: The ability to click or press a label to trigger an event on a control provides usability and accessibility benefits by increasing the hit area of a control, making it easier for a user to operate. These benefits may be lost or reduced, if the label element contains an element with its own activation behavior, such as a link

Therefor I think you should put the link to the privacy police outside/after the label as in the example in the link above.