A man who has had both his eyes removed due to glaucoma has handed himself into gardaí with a quantity of herbal cannabis in a protest designed to challenge the law regarding the use of the drug for medicinal purposes.Mark Fitzsimons (30) has been blind for the last five years and believes that by being prosecuted for possession he may be able to avail of free legal aid in order to test legislation.On Thursday, with the help of his cane and carer, the Dundalk resident presented himself to gardaí with a small quantity of the drug and requested he be charged with possession in order to secure a court appearance.