Next opportunity for international training with IAAI is April 14-19 2019 and will take place in Jacksonville, Florida, USA. Read more here. IAAI's ordinary training can be found here.
Fire Service College, Moreton-in-Marsh, UK provides with a practical fire investigation course - read more here.
MSB has several courses - read more here.
UCLAN (University of Central Lancashire) UK gives the opportunity to get a certificate in fire investigation - read more here. And so does Gardiner associates Training and Research, Northolt, UK - read more here.