Private Investigations: The Best of Dire Straits & Mark Knopfler is a compilation album by Dire Straits and Mark Knopfler, released in 2005. It features material from Dire Straits' six studio albums and Mark Knopfler's solo career, including a previously unreleased track. The album is named after their 1982 hit single and includes songs selected from 1978 up through the group's dissolution in 1995. The United States version omits one track and adds another.