Task: Text Matching
Input (English, Spanish): English: This condition of accrual is essential since, in my opinion, the principle of nulla poena sine lege, legality in criminal law, must be observed. 
 Spanish:Es una condición imprescindible puesto que, en mi opinión, ha de respetarse el principio de legalidad del Derecho penal "nulla poena sine lege".
Output (English): Yes