This follows the Supreme Court dismissal on Oct 28 of an application to restrain police from arresting him.
Assistant Police Commissioner Crimes Thomas Elluh told PNG Loop that the minister has voluntarily come in for questioning by his officers.
PNG Loop was on site when the minister turned up and was openly greeted by him as he walked into the office.
A staff officer for Pala told PNG Loop that the minister is in good spirits and is happy to go in for questioning.
Elluh says that this process may take a few hours but is encouraged with the step the leader has taken to allow the course of investigations to take place.
Pala was charged with conspiring with others to defeat the course of justice in relation to the Paul Paraka lawyers legal bill payments saga last year.