Question about Professional Skills for missionaries:
"Is there a mission organization that can use my experience as a police officer?"
Their website states their vision as "to recruit career and short-term missionaries and teams who have applicable experience and expertise, to work in other countries among the authorities, and to develop contacts to offer practical training and seminars and to present the gospel and disciple the new believers."
I'd also encourage you to contact some missions agencies to see how God may use your law enforcement experience and/or your life experience.
Wycliffe is currently recruiting for security-related work in at least one of the larger centers used by their personnel. The person due to be leaving that role is a policeman, and having him in that role has made a world of difference in dealing with crime, local criminals, and local law enforcement.