The high toxicity of methyl alcohol is usually related to the created formaldehyde and formic acid in organisms. Some researchers, however, assign the high toxicity to other factors such as the long-time circulation of methyl alcohol in blood in an unaffected fashion. For that reason, in cases of non clinically manifested intoxications, the results of the chemical and toxicological analysis play core and very important role for the diagnostics and follow up treatment procedures.