This is a different situation .
In regards to the Koh Tao killing, the UK police just went to Thailand to watch the investigation without participating .
In this story, the UK Police are going to interview the husband of the deceased to find out whether he can help with their investigations into the murder and maybe a prosecution in the UK (if the UK Police find a suspect . )
The UK Police are investigating this , the Thai police investigated the Kao Tao murders .
Two completely different situations