By 2059 all human beings have been genetically altered with the ability to harness power from the earth’s magnetic field, but When the first murder is committed in 23 years, a naturally born detective is assigned to the case.

Thanks for the advice. I just wrote whatever came to mind.

There are too many disparate elements that don't seem to connect here. What is the relevance of being able to harness the earth's field, in relation to murders being non existent for over two decades? Is there a way that the issue of genetically engineered human vs natural birth protagonist can be further highlighted to emphasise what I assume is going to be greater antagonism to your hero?

Can you perhaps just drop the first chunk altogether; replace it with "In a technologically advanced future, a naturally-born detective must solve the first murder in 23 years ..."

It's still got a lot of question marks for me. Why have there not been any murders in 23 years, and why is this relevant information for me to receive? I guess, at the core, you have a detective who must solve a murder, but your hook is unclear, as are the stakes and what antagonistic force he faces.