People in Pennsylvania who have been convicted of a crime or who have pled guilty to a crime may file an appeal to have their guilty verdict or plea reversed. Appeals are most the common legal mechanism with which to gain a conviction reversal. Writs may also be used. However, the factors of every case are different as are the laws in the various jurisdictions that pertain to reversing a conviction.
If a Pennsylvania resident or any other American receives an unfavorable ruling in a criminal case, it may be appealed. The number of appeals that can be made depends on how many courts are higher than the one a case is currently being heard in. Depending on where the case is being heard, a defendant may have as many as four opportunities at the state level for a ruling to be overturned.