The BBC followed officers as Operation Begonia cracks down on human trafficking and the sex trade in Scotland.
Ash Regan's proposals would have made the act of paying for sexual services a criminal offence.
Independent MSP Ash Regan's bill would make it a criminal offence to pay for sex in Scotland.
Porcelain Victoria is concerned that a potential change in law in Scotland could drive sex workers into poverty.
Khondakar Hasan, Liu Xu Hopkins, and Benjamin Hopkins will be sentenced on 27 February.
A bill to outlaw paying for sex looks likely to run out of time after ministers voiced concerns.
Detectives said "better recognition" of the crimes may be a factor in the rise in recorded victims.
Charles Mwesigwa led a degrading network exploiting vulnerable women in glamorous parts of Dubai.
Young Ugandan women tell BBC they are being lured to Dubai to take part in extreme sex acts.
