President John Evans Atta Mills has expressed concern over a two week remand custody handed a radio commentator, Nana Darkwa, by a circuit court on Thursday.Nana Darkwa was placed in prison custody following his arrest by the police after he accused former President Jerry Rawlings of burning his own house.A statement issued by the Ministry of Information quoted President Mills as assuring the citizenry of his unflinching respect for the rule of law and the principles of separation of powers and the independence of the Judiciary and stressed the need for a balance between responsible citizenship and the right to free expression."The judiciary has a huge responsibility in promoting this balance in the nurturing of democratic governance," President Mills is quoted as saying.President Mills also reiterated his belief in good governance, the rule of law and his commitment to creating a better Ghana with opportunities for all within an environment of unfettered protection of the citizen's rights to free expression.The statement, signed by Deputy Minister for Information, James Agyenim-Boateng, said the president reminded the public to exercise their rights responsibly.