Les Kjemhus is a 30 year veteran of the Royal Canadian Mounted Police (RCMP). He is a recognized expert in North America in the field of indoor cannabis cultivation investigations. He has conducted and supervised hundreds of indoor grow investigations in Canada and has testified as an expert in this field in both Canada and the USA. He has cultivated indoor marijuana under license for the RCMP on a number of occasions to train investigators and in an undercover capacity. As a result, he has very unique ,"hands-on", experience about marijuana cultivation to pass on to law enforcement trainees.

Les has taught this subject on over 800 occasions for the RCMP, the DEA Domestic Cannabis Eradication/Suppression Program, US Department of Justice, Midwest Counterdrug Training Center (MCTC), Western Regional Counterdrug Training Center (WRCT), Northeast Counterdrug Training Center (NCTC), Mid Atlantic Narcotic Training Academy (MANTA) as well as numerous State and local law enforcement agencies. Inspector Kjemhus helped develop the DEA's "Marijuana Cultivation Investigator's Handbook" and helped write and publish a book entitled "Two Way Street – Parents, Kids and Drugs".