This is where I saw the original story and then I saw the other link which might've been older.
http://news.bbc.co.uk/2/hi/uk_news/7679145.stm
But I got the impression there was a bunch of classified investigative stuff that they released, which I assume if someone files a ridiculous report it's not going to be investigated for very long, much less classified. So whatever these reports were I figured they were more interesting than the usual BS. Obviously the drawings are just amateur drawings. There could be a UFO outside your window right now and if I asked you to draw it accurately for me, more than half of the people here would produce something that looked like it was drawn by a 6th grader.