Ten provinces with least arrested for the narcotics: 2004 - 2006
 2004 
RankProvincescase
1Uthai Thani91
2Phatthalung122
3Chai Nat123
4Nong Bua Lam Phu126
5Satun138
6Mae Hong Son139
7Nakhon Nayok146
8Pangnga191
9Phichit197
10Sing Buri199
11Trat199
  whole kingdom 73,862
 2005 
RankProvincescase
1Uthai Thani108
2Mae Hong Son142
3Chai Nat174
4Ranong186
5Phatthalung192
6Trat211
7Nong Bua Lam Phu220
8Surin225
9Pangnga232
10Satun240
 whole kingdom 99,789
 2006 
RankProvincescase
1Uthai Thani161
2Nong Bua Lam Phu173
3Chai Nat205
4Mae Hong Son210
5Trat239
6Nakhon Nayok261
7Pangnga280
8Phatthalung288
9Samut Songkhram320
10Loei352
 whole kingdom 110,167
Souce : The Royal Thai Police
Compiled by : Statistical Forecasting Bureau,  National Statistical Office