ST JOHN’S, Antigua, Observer - – A local medical practitioner is making a case for government to relax the rules on the use of marijuana … while at the same time calling for a complete ban on tobacco. Dr Leslie Walwyn acknowledged that ganja has some harmful effects such as inducing mental health issues but she stressed that the medicinal properties are even more significant. Non-smokers are also at risk of developing complications associated with exposure to second hand smoke.