During the early 1990s, a series of high-profile cases turned out to be miscarriages of justice. Many resulted from police fabricating evidence to convict people they thought were guilty, or simply to get a high conviction rate. The West Midlands Serious Crime Squad became notorious for such practices, and was disbanded in 1989. In 1997 the Criminal Cases Review Commission was established specifically to examine possible miscarriages of justice. However, it still requires either strong new evidence of innocence, or new proof of a legal error by the judge or prosecution. For example, merely insisting you are innocent and the jury made an error, or stating there was not enough evidence to prove guilt, is not enough. It is not possible to question the jury's decision or query on what matters it was based. The waiting list for cases to be considered for review is at least two years on average.