In Latvia the use, acquisition and storage of small amounts of illicit drugs are administrative offences punishable by a warning or a fine of up to EUR 280. Average sentence for drug possession of larger amounts is 3 years.According to the Council of Europe Annual Penal Statistics SPACE I there are 3765 prisoners in Latvia, 1104 of them for drug-law offences. HIV prevalence in prisons is 7%. As for the drug use responses in prison there are OST, ART exists but is available for prisoners who have started it prior to imprisonment, and NSP doesn’t exist at all. According the SPACE I 2018 survey, the average amount spent per day for the detention of one inmate in Latvian prisons is 36,4 eur/per day, 13286 eur/per year/per inmate.
The estimate number of people who inject drugs is around 6200. HIV prevalence among PWID is 26%. In 2018, the costs of NSP services was 59 eur/per person/per year and OST – 1060,46 eur/per person/per year. Unemployment benefits are paid for up to 9 month, 215 eur/per month, 1451,25 eur/per person/per 9 months). So, if the person would need OST, NSP and unemployment benefit, it would cost for the state around 2570,71 eur/per person/per year. The health and social services costs are 5 times smaller than incarceration costs.
 The costs of OST and NSP services were provided by national partners and service providers