A missed deadline: the difference between life and death
The Death Penalty Information Center has developed a database of capital appeals that were dismissed because they were not filed by the statutory deadline.
Between 1996-2004, it has been discovered through this database, that courts dismissed some or all of the claims in sixty cases without conducting any judicial review of the merits, including claims of actual innocence primarily because the claims were not filed in time. Some of which can be found here
This new resource will be updated by the Death Penalty Information Center. You can read more about this here