Why did the government change its laws to allow the growing of hemp?

In the 1980s and 1990s, there was increased interest in the cultivation of industrial hemp as a potential source of new jobs in the agricultural and industrial sectors. As well, there was an increased need to develop alternative sources of fibre. Research conducted between 1994 and 1998 showed it could be successfully grown in Canada as a separate entity from cannabis (marijuana). With the demand and encouraging research findings, Health Canada chose to give the agricultural and industrial sectors the opportunity to grow and exploit industrial hemp in a controlled fashion. Laws were amended to allow for the cultivation of industrial hemp.