Double jeopardy could be abolished by state legislatures for all serious crimes whereby fresh, compelling evidence emerges  The scrapping of the double jeopardy would be practicable if it was permitted for serious crimes, like murder and rape, and only when fresh, compelling evidence of guilt emerges that calls into question the original acquittal. Such restrictions on any scrapping of the rule would not tie up courts in re-trials, for they could only be called for certain crimes in certain, restricted conditions. The British Law Commission in a 2011 review concluded that whilst the ancient rule of double jeopardy is of 'fundamental importance', it should be possible to "quash acquittals in murder trials where there is 'reliable and compelling new evidence of guilt'". In practise, this would preserve the traditional advantages of the law, whilst ensuring that those who are guilty, and can be proved so, do not remain free.