When sampling a property the sampler will apply appropriate sampling methods following current standards and guidelines. They will ensure the samples have been taken from a suitable location using the correct sampling method, that the appropriate number of samples have been taken for the property and that the samples have been correctly identified. This is to ensure that the quality and integrity of results can be trusted.
Methamphetamine and chemicals used in the manufacture of methamphetamine are hazardous. All parties involved in the sampling and cleaning process must understand how to identify and manage the hazards associated with the manufacture and use of methamphetamine.
Samplers will also have processes, systems and quality control checks in place to ensure the integrity of their work.
If you are interested in learning about sampling here are some training organisations you can contact about this.