The use of criminological theories can be positive. If law enforcement officers understand the theories and can pick out which theory works for each situation, they can get the best possible outcome.

I think an issue with using criminological theories is that utilizing just one or two of the theories can limit the understanding law enforcement has. But if they use too many then their ideas may contradict each other. 
The problem with generalizing and stereotyping in criminal justice is it can cause issues of making false assumptions and wasting time and resources. It can cause innocent people to be targeted and guilty people to be passed up. 

In your response to two of your peers, identify one benefit or limitation they may not have considered and explain why you think that might be an important consideration, and, if possible, identify one negative consequence of generalizing or stereotyping they identified that you did not consider. Remember always to be respectful when replying to peers, even if you do not agree with their responses. In 2-3 sentences.