At the end of 2007, there were 672 personal digital assistants in issue in the Department; 334 to male and 338 to female members of staff. It would incur disproportionate expense to provide the information by gender for each year from 2001 to 2006 as the asset register does not contain an audit trail of allocation to members of staff. Mobile assets are assigned and reassigned as staff join, leave or change roles within the Department.