The Koh Tao Murders... Simply follow the Electronic Trails...
Perhaps there is great value in what the British cops could follow and observer - - This is what a well-connected and computer savvy British cop should "follow and observe" in Thailand - -
Start with the obvious: The murders were perhaps committed by a well-connected Thai. That is what everyone suspects, so why not start there? Doesn't it appear that the village headman was too keen on avoiding a police investigation of his extended family and friends? To what lengths did he go to deflect an honest inquiry?
It has only been about 6-weeks since the young British couple were slain by unknown attackers. The DNA samples may have been compromised, but the electronic trails are still very warm.
Thai people (..wealthy and powerful and average..) all love their mobile phones and their ATM cards. The British investigators should follow the electronic trails, in order to establish probable or circumstantial evidence.
Even if the Koh Tao village headman and his family have all changed their mobile phone numbers, and opened new bank accounts, it doesn't matter. The local phone company computers retain all SMS text messages, and all cell tower connection data for 90-days. (This is true for DTAC, AIS, etc.) The Thai banking and ATM and CDM data is essentially retained "forever".
The British investigator needs only a starting point. He should start by determining this - -
1. What mobile phone number(s) were in use by the Koh Tao village headman, his son, and their extended circle of family and friends and cop buddies on or about 15-Sept-2014? Start with even just one verified phone number. Follow the connections. Read the text messages. You don't need triangulation data. Just a connection record with one single tower will show where in Thailand was any given mobile on any given day. The text messages, together with the approximate location of the Thai suspects, and the spider's web circle of connections will surely raise a few eyebrows. If we were back in the real world, that is how real police would establish locations and extract electronic information. (By the way, I am not referring to GPS/GPRS data from 3G/4G mobiles. All mobiles, even old 2G phones, leave connection data on the DTAC/AIS computers. Look at the signal strength bar graph on any Thai mobile. When switched on, a mobile phone is continually "connected" to at least one cell tower. Part of the 90-day data retention record is simply the tower registration number, to which that mobile phone is connected at any given time.) (Also, please realize that when you "erase" SMS text messages from your mobile, you have only erased the local copy. The server copy still has a 90-day shelf life...)
2. What bank accounts were in use by the Koh Tao village headman, his son, and their extended circle of family, friends, mia nois, girlfriends, (and cop buddies) on or about 15-Sept-2014? Follow the ATM withdrawals and the CDM redeposits from that day forward. Follow the account-to-account transfers. Follow the money trails. Ask questions. If we were back in the real world, that is how real police would investigate "suspicious behavior" in terms of who was paying off whom from 15-Sept forward...
3. Which cops, translators and other persons of interest were involved with the young Burmese boys in the "Safe House" on Koh Tao? What mobile phone numbers were those cops using on the day that the confessions were "extracted" from the Burmese suspects? The British police should follow the connections from those cops' mobile phones to bigger fish up the food chain. Wouldn't you like to read those Thai cop mobile phone text messages from that day?
It wouldn't take Agent 007 to connect the dots on all of the above, now would it? The media reports that 7 or 8 British cops are here in Thailand looking into the murders. All you need is one computer savvy British cop, and one "honest" Thai translator, and a court order allowing unfettered access to all electronic phone and banking records still stored on local servers.
It ain't rocket science...
JD