Indoor Hydroponic Marijuana Grow Op Investigations Training

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Butane Hash Oil (BHO) Investigations

classes offered this year

This training is for law enforcement, fire departement, hazmat and EMS personnel.

The cultivation of marijuana indoors utilizing hydroponics has become a multi billion-dollar industry in Canada and the United States. In Canada it has virtually stopped the importation of marijuana, creating a major industry that has been successfully exporting marijuana around the world, and in particular, to the USA. Recent experience indicates the trend in the US is to move from importation and outdoor cultivation to domestic production of indoor marijuana in all jurisdictions and states. With the enormous profits, simple growing techniques and a growing marijuana user population, indoor grow investigations are quickly becoming a part of everyday police work.

These training classes are designed to educate law enforcement, fire, hazmat and EMS personnel including dedicated drug enforcement investigators, municipal and rural patrol officers, highway patrol officers, community police officers, communty action teams, prosecutors, crime prevention specialists, and asset seizure investigators. Detection of grow sites is difficult but not impossible. Over the past number of years in Canada, we have been involved in thousands of marijuana cultivation investigations.

The more investigations I was involved in, the more I started to see patterns developing, situations that are common to almost every grow site. As a result of this experience, along with the experience of having personally cultivated indoor hydroponic marijuana under license on a number of occasions, I have put together these training classes to share some of my experience with law enforcement in Canada and the USA. Over the past 15 years I have taught the class on over 1000 occasions to law enforcement personnel on both sides of the border. The bottom line is that we all need to learn more about indoor marijuana grow investigations so we can locate the grow sites, search and seize evidence, prosecute the growers and make sure we are doing so safely and effectively.

Incidents in Canada, including the tragic murder of four RCMP officers during a raid on a marijuana grow operation only go to prove the level of organization and violence increasingly evident during these investigations. I believe that a concerted, dedicated effort, in conjunction with our communities, will result in a pro-active approach to this ever increasing problem in law enforcement. I hope that by attending this class you will be better equipped and educated about indoor grows and that you will be more effective and safe in your enforcement of indoor marijuana cultivation.

Les Kjemhus

Les Kjemhus recently retired after a 30 year career with the Royal Canadian Mounted Police (RCMP). Les is a recognized expert in North America in the field of indoor marijuana cultivation investigations. Les has taught this subject for on over 1000 occasions for the Drug Enforcement Administration (DEA), the U.S. Department of Justice, the Royal Canadian Mounted Police and numerous State and local Law Enforcement agencies. He helped develop the Drug Enforcement Administration's "Marijuana Cultivation Investigator's Handbook" and has testified as an expert witness in Canada and the USA. Les has an extensive background in both narcotics enforcement and training.

Center for Advanced Technical Law Enforcement Training (CATLET)

L. Kjemhus Law Enforcement Training is proud to announce that we have partnered with 18 other instruction companies in a new law enforcement training consortium, the Center for Advanced Technical Law Enforcement Training (CATLET). Among the over 100 courses offered by CATLET, they will be providing our one day Indoor Marijuana Investigations, one day Indoor Marijuana Officer Safety, one day Indoor Marijuana Expert Witness Training, one day Marijuana in Organized Crime and Terrorism and the two day Indoor Marijuana Investigations and Officer Safety classes. Most of the classes offered by CATLET are 1-3 days to minimize time and expense. We urge you to visit the website at, to explore the wide variety of top quality law enforcement training being offered.

What you will Learn:

  • Learn what to look for at suspected indoor grow sites
  • Learn how to examine and analyze electrical useage data
  • Learn how cannabis is cultivated hydroponically and the equipment used in an indoor grow operation
  • Learn how marijuana is grown outdoors and indoors.
  • Learn the proper steps to conduct an indoor grow op case from initial information to search, seizure and arrest.
  • Conduct investigations safely
  • How to prepare for court and testify as an expert witness
  • How to safelty investigate Butane Hash Oil (BHO)

Classes being offered:

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