I have a logline question: is it acceptable in a logline to use shorthand that's slightly out of context (assuming I'm not being too obscure), the point being that the shorthand is more literally accurate but may suggest a tone I may not want to convey. For example, instead of "A witch turned detective and her normal, non-magical partner investigate ritual sacrifices" could I write "A magical detective and her muggle partner investigate ritual sacrifices"? Or "...a Fields Medal winner..." as opposed to "..a young and exceptional mathematician...".

I don't think there's a rule we could codify on this, pliny. Is the reference clear? Does it make your logline more entertaining? Does it give your logline more punch and hopefully therefore more likely to get someone's attention? There's a anecdote I remember about a producer walking into a studio exec's office at Universal for a pitch meeting, where he simply did this: Producer [hums the famous opening theme song notes for the TV series "Dragnet"]. Da-da-da-da. Dan Aykroyd." Meaning he had Aykroyd attached and "Dragnet" for which he had secured the rights. Sold it based on the above. So my advice: Test out various versions on friends and family, especially other writers. See what they think works better.