The
 stopping and searching of foreigners in and around Asoke is at 
unprecedented levels.  
 I see it with my own eyes in the area and many readers have 
 relayed their experiences.  One foreign 
 restaurant manager hears reports daily from customers and relays 
these.  The cops who perform these checks do so in a very specific area 
 and are 
 unintentionally driving some away from that area.  Their 
 actions have caused such angst that some are saying that they will 
forego 
 visiting Soi Cowboy - which is just a hundred metres or so from where 
many 
 of the checks take place - and visit Soi Nana instead.
A Stickman reader added:
Regarding the many reports of police stop-and-searches, it's getting outrageous. One downtown police district is having a field day targeting Western males. I rode my bike back from Silom to lower Sukhumvit on Friday and went through FIVE separate checkpoints. It's downright oppressive these days. Today, however, was a different story. A guy I know was randomly stopped by police while on a motorcycle taxi. He was searched and found not to be carrying anything illegal. However, they insisted on a pee test (at 4 PM in the afternoon) where he tested positive for marijuana. The fact is that he DID smoke marijuana - but in Holland yesterday where he wasn't committing any crime. He had to settle the matter as he was told that if he didn't he would be blacklisted from Thailand.
Recommendations if you are arrested:
As a westerner, whether a tourist or an individual living in Bangkok, you may very well be stopped at random and subject to immediate arrest by Bangkok police. If you are stopped and harassed by Bangkok Police, especially common in the Thong Lor and Lumpini police district areas popular with tourists, here are some recommendations:
1) If you are taken to a police facility,
 do not sign anything. You will be verbally insulted and browbeaten 
(there is no anecdotal data that suggests you will be physically 
harmed). But refuse to sign. If you do sign, even an acknowledgement 
that you have been detained can be interpreted by Thai courts as an 
admission that you resisted arrest.
2) Demand that the police contact your embassy on your behalf. Again, sign nothing.
3) At least one person was able to get 
the police to release him by saying he needed to go to the hospital “to 
get my medicine.” Your dying while in police custody is a public 
relations snafu that the police would prefer to avoid.
4) Particularly on a weekend, you may be 
forced to spend a night in a Bangkok jail. Hang in there, sign nothing, 
and sit tight until your embassy representative can assist you.
WoWasis Travel Blog 
another report on this is at
Bangkok Coconuts
Random urine tests are not new in Thailand, but recently they have become much more common in the tourist areas controlled by the Thong Lor and Lupini district police.
 Globial Dispatch another report on this is at
Bangkok Coconuts
Random urine tests are not new in Thailand, but recently they have become much more common in the tourist areas controlled by the Thong Lor and Lupini district police.

