The police force has changed its internal procedures to crack down on leaks, according to Police Commissioner Michael Cassar.

During an interview on Radio Malta, the commissioner said he had instituted a full review of existing procedures in the wake of the leak of phone calls between former ministerial driver Paul Sheehan and the police control room last November.

Mr Cassar admitted that the police still did not know who was responsible for the leaks.

“It could have been any number of people. It was extremely easy to gain access,” he said.

Since then, structural changes have been made to the building housing the recording equipment to better control access. Internal procedures have also been changed: no more than two people can now access the room at one time, and they must remain in each other’s presence at all times.

“I have also given new instructions to all officers on how requests are to be made, and their responsibilities once they are given access to a recording.”

The Police Commissioner also expressed his concern about morale among the police force.

“The vast majority of officers go above and beyond in their work, but a few are simply there to sign in and clock out. The few who are de-motivated are causing apathy throughout the corps,” he said.

“The only way to tackle this negative attitude is with greater discipline, from top to bottom and bottom to top.”

Mr Cassar added that he was looking into revamping a number of police units, specifically the Anti-Terrorism Unit and the Forensics Unit, which were in need of more training and human resources.

He also pointed to an increased police presence in the months ahead, including mounted patrols and a new group of police motorcyclists with specific responsibility for different districts, to help with both traffic management and crime prevention.