Need help with reggae/dub sample

Can anyone help me with a sample in this tune? Its the little Siren/Laser sound on the very first beat at like 27/28 seconds. Been looking for that style sample for tiiiiime but no luck. Any help would be much appreciated!
Cheers in advance!

think that it. might need tuning down or w/e tho

nice wan

Thankyou so much!