II. HUMAN RIGHTS AND FUNDAMENTAL FREEDOMS
Article 19
(Protection of Personal Liberty)
Anyone deprived of his liberty must be immediately informed in his mother tongue, or in a language which he understands, of the reasons for being deprived of his liberty.
Within the shortest possible time thereafter, he must also be informed in writing of why he has been deprived of his liberty. He must be instructed immediately that he is not obliged to make any statement, that he has the right to immediate legal representation of his own free choice and that the competent authority must, on his request, notify his relatives or those close to him of the deprivation of his liberty.
Rights during investigation - informed of belief that crime has been committed
Rights during investigation - remain silent
Rights during investigation - legal assistance
Rights during trial - counsel of accused's choosing
EDIT.