I think it's early dancehall era, Junjo Lawes- or Linval Thomson-style production. Then again I could be well wrong there.
Lyrics go something like: "Cos dis ya roadblock ting sir, stick it up stick it up, put your hands in the air sir..."
(NB it's NOT Toots' '54-56' ! - but it may have been using/referencing those lyrics)
Would be very grateful for any clues, as this is driving me mad. Late 40s memory loss, GRRR. Been taking the Gingko Biloba tablets for memory, but it appears they aren't working!