Hello,

According to the official guidelines of UPTU the seat reservation under defence quota goes by the saying:

"UPAF (UP Armed Forces)Quota - 05%
Sons / Daughters of defence personnel of U.P. either retired (superannuated) or killed/disabled in action or defence personnel posted in U.P./defence personnel domicile of U.P. &  posted outside U.P."

Police forces are not counted under defence/armed forces so you will not be eligible to get a seat under UPAF quota.

To know more about UPTU you can check the below link:

https://www.careers360.com/question-uptu-information-0

Hope it helps!!