If legalization reduced current narcotics enforcement costs by one-third to one-fourth, it might save $6 - $9 billion per year.
The narcotics enforcement currently spend between $6-9 billion on purchasing narcotics
( z1 spend :ARG0 ( z2 person :ARG0-of ( z3 enforce :ARG1 ( z4 narcotic ) ) ) :ARG1 ( z5 purchase :ARG0 z2 :ARG1 z4 ) :ARG3 ( z6 between :op ( z7 monetary-quantity :quant 6000000000 :unit ( z8 dollar ) ) :op ( z9 monetary-quantity :quant 9000000000 :unit ( z10 dollar ) ) ) :time ( z11 current ) )