Numbers in Thailand always looks good for those who presented them. The TAT always have more tourist than the hotel branches who like Government support etc.
Immigration In north east of Thailand, also came out with some numbers of how good they do their work.
Just read it as information, it seems they do work even if the numbers are smaller of even bigger. Be careful out there.
In the period of 1st to 12th July 2,117 arrests were made of illegal immigrants (883) people on overstay (28), workers without work permits (44), those wanted on warrants (13) and 927 other unspecified violations.
Some 222 people were turned back at borders.
Source: [Naew Na]([members only]) and translation of Thai Visa News.