When Dr Hobson picks up the telescope, she is not wearing a glove. She is then seen by the body again and now has gloves on. As the telescope appeared to be the murder weapon, it should not have been touched with bare hands.
Hathaway remarks to Lewis that pride goes before a fall. A Cambridge Theology graduate would know that this is a common misquotation of Proverbs chapter 16 verse 18 which actually says "Pride goeth before destruction, and an haughty spirit before a fall."
Incorrectly seen as a goof - If you look closely you can see that Hobson IS WEARING GLOVES when she picks up the telescope. So unless it's some fantastic CGI added later after being aired the previous comment is incorrect.