What was a common conclusion of both the Wickersham and President's Crime Commissions?

The conclusion that the quality of police personnel needed improvement reflects a critical assessment of law enforcement agencies conducted by both the Wickersham and President's Crime Commissions. These commissions analyzed the effectiveness and integrity of police practices and identified various shortcomings in the training, accountability, and community relations of police personnel.

The Wickersham Commission, created in the early 1930s, examined issues such as police brutality and corruption, advocating for reforms in training and hiring practices. This commission emphasized that well-trained and properly managed police officers are essential for effective law enforcement and maintaining public trust.

Similarly, the President's Crime Commission, established in the 1960s, also recognized that inadequate training and poor recruitment practices led to various problems within police departments. It highlighted the need for comprehensive education, skill development, and more stringent standards for hiring to improve overall police performance and community relations.

Thus, both commissions concluded that enhancing the quality of police personnel through better training and hiring practices was crucial for achieving effective policing, which is why this answer is correct.