Proving the innocence of their client: Defense attorneys must gather and present evidence that supports their client's innocence, which can be a difficult task if the evidence against them is strong.
Overcoming biases: Defense attorneys must often overcome biases that may exist within the legal system or the minds of the jury in order to ensure a fair trial for their client.
Dealing with limited resources: Defense attorneys may have limited resources, such as a smaller budget and fewer investigators, compared to prosecutors, which can make it more difficult to build a strong defense case.