I was recently questioned by the police in an 'interview room'. They presented me with a formidable stack of paper work with my ISP's logo on it (Comcast) and these papers purportedly showed them all of my browsing history. From my knowledge, the only way they could obtain this data is by subpoenaing my ISP. If this were the case, would my ISP notify me? I called my ISP after I was questioned and they said they had no record of a subpoena or any other request for information. Did the police make the whole thing up?