Helll guys please help me i lost 0.5 btc by scammer on skype.
Next time use an escrow who is reputable on this forum to mediate the trade instead of sending first to some unknown person on the internet.
if i make police report will they do something?
Not likely. Cryptocurrency trading is not legal in many places as well. Depending on your local laws you may want to report this to cyber crime but I doubt anything good will come off it. Mistake was from your side too and bitcoin transactions are irreversible. You should know these things before you start transacting in them.
i hope this never happen to anyone
It will keep happening if people trust any username they see on the internet and sends away money without using a middleman.
You should provide a proper Scam Accusation report as given here -
https://bitcointalk.org/index.php?topic=260073.0If this scammer has a bitcointalk account at least that account can be marked with a red trust to possibly save other people from dealing with them.