BOLIVIA
the central bank of bolivia,el banco central de bolivia said in a statement:
"it is illegal to use any currency that is not issued and controlled by a goverment or an authorized entity."
Like bolevia there are many other countries who thinks the same regarding crypto currencies like Bangladesh, karyzikstan, Nepal and somewhere in India also. These are the countries who consider bitcoin a fraud, a Ponzi scheme, a means by which many illegal activities has been carried out like selling drugs, explosives, money laundering etc and because of this only they have fear that introduction of bitcoin can bring all these activities to their nation also but for their kind attention, I would like to say that all these activities can be controlled of bitcoin will be legalised.