MSP, Maryland State Police search turns up a couple closed charities here http://www.sos.state.md.us/Charity/SearchCharity.aspx However, a separate search for National Police & Troopers Association / International Union of Police Associations, AFL-CIO is listed as registered in Maryland here http://www.sos.state.md.us/Charity/SearchCharity.aspx couldn't find their solicitors under the SOS State MD site but a separate search here shows results including fundraisers used https://www.sos.wa.gov/charities/search_detail.aspx?charity_id=5457 fundraisers / solicitors : Courtesy Call, Inc.
Outreach Calling
JAK PRODUCTIONS, INC.
Residential Programs, Inc.
SourceCall, Inc.
With Community Services, Inc.
CHARITY PROMOTIONS, INC.
CHARITY APPEAL, LLC
Separate searches for these charities and fundraisers usually turn up with a search for "50 worst charities"