How Long Can The Police Department Keep My Firearm?

Location: Wichita, KS

on May 6th 2024 my house was broken into and 26 firearms were stolen from me, one of them was found in February of 2025, i only found out about that 6 months later because the FFL i bought it from let me know "oh by the way we got a trace with your name on it" (they know the situation surrounding the guns and i used to work there, they wouldn't normally tell a person if their name was on a trace) so i contacted PD and said "so when can i have my property back" they said something along the lines of "when our investigation is done" the gun was not used in a crime it was found during a raid on a drug house, the criminals they arrested claim they have no idea how it got there and the PD (wanting to charge them with felon in possession of a weapon) claim they are running "tests" on the gun and trying to tie it to the guy so they can stack more charges on him. now im not a forensic scientist but i don't think it takes over a year to get that done, i just want my property back, its a $1000 rifle not some cheap POS and everytime i call the detective gives me a new excuse and tells me to "call back in a month" February marks one year they've had my gun, thats actually longer than from when i purchased it to when it was stolen, i haven't contacted him this month yet, what should i say?

this part is just to vent a little, the way the officer on the case where it was found talks about the gun as if its not my property it pisses me off to no end, the first time i talked to him he said "well if we find out it was used in a crime the judge may order it to be destroyed" and i didn't say but immediately thought "you aren't going to destroy my fucking property, i paid for it, i have receipts, pictures, serial numbers, it belongs to ME" thankfully it wasn't used in a crime but he still refers to it as if its the department's property not mine, that just annoys the hell out of me, rant over.

additionally, i've heard all i want to hear about the robbery itself, i don't like talking about it and i would prefer not to.