If such theft was done on a centralized crypto exchange, then the chances of you recovering your funds is high, most especially if you fire a proper complaint and could prove that the Bitcoin was stolen from your wallet to theirs. But if that Bitcoin was transferred from one non custodial wallets to another, then the chances of you recovering that lost Bitcoin is very low, most especially if that individual didn't transfer that Bitcoin to an exchange that is KYC verified
You can file your report to the exchange and even police but I am sure you will have to wait for their support. It firstly needs time and secondly risk of failure. Even KYC is applied on most centralized exchanges, scammers can use fake KYC documents that will make investigation process more complicated with as said risk of failure.
Even if scammers are arrested, it doesn't mean you will certainly receive your money back. Avoid being scammed is best, and if you were scammed already, don't hope too high of getting money back. Chance to get it back is very small, and I don't exaggerate this risk.