Experts are concerned that a new export ban on raw timber from Myanmar which came into effect from 1st April could have little effect due to a lack of clarity from the government on how the ban would work in practice and the effects of the ongoing conflict in Kachin state in the north of the country which borders China. NGO EcoDev claims that very little of the timber that crosses the border into China is actually sourced in border areas where the government are fighting the Kachin Independence Army on the pretext of cracking down on illegal logging. Field research has found that many of the logs actually come from government-controlled areas suggesting collusion between the authorities and the rebels. They also note that it is very hard to track the chain of custody of logs to determine their legality as so much comes from the deep jungle.