The Sheriff's Department of Baldwin County shall receive 25 percent of the proceeds of the sale of property confiscated under Section 20-2-93, known as the Controlled Substances Act. The percentage shall be computed from the sum remaining after the payment of all proper expenses of the proceedings for forfeiture and sale, as provided by Section 20-2-93(e)(2). The money received by the sheriff's department pursuant to this section shall be placed in a separate fund to be used to pay drug informants whose information leads to the conviction of an individual for a drug offense.