Is it acceptable to write a query using two different POVS? I wrote a novel about a serial killer in the time of Jim Crow. The way the novel works is that it flips back and forth between the killer on the hunt and the detectives trying to catch him. Originally, when I wrote the novel, I wrote it in 3rd person, but then when I placed the novel on the writer's blogs, readers have commented that it would flow better if I wrote the killer's part in 1st person. So now the way the novel works is that the killer's part is in 1st while the part of the detectives is in 3rd. I wonder if I could write the query the same way. I was thinking about using this as a query.Don't.
And NO, you can't write a query in ANY POV other than your own. Therefore, that means you can NOT write a query in two different POVs unless you (plural) are Siamese twins or un-integrated multiple personalities, each contributing to the book.
A query is about the book. It's not the book.
Thus you will talk about your characters and what's at stake for them, rather than having the characters speak at all.
Do NOT try to be clever or gimmicky in a query.
Do NOT fall prey to the siren call of "I bet agents see that same stuff all the time, I'll be DIFFERENT."
I'll tell you what we don't see nearly often enough: a concise, enticing description of the main character and what's at stake for him/her as the plot unfolds.
Dare to be good, not clever.