Search for: Title Author Subject Series that begins with: 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings > Browse Headings # Police patrol -- Surveillance operations. 2 Police patrol -- Surveillance operations -- Colorado -- Denver. 2 Police patrol -- United States 2 Police patrol -- United States -- Specialized units. 1 Police patrol -- United States -- Surveillance operations -- History. 1 Police patrol -- Washington (D.C.) 2 Police patrol -- Washington (State) -- Seattle. 1 Police -- Pennsylvania -- Comic books, strips, etc. 2 Police -- Pennsylvania -- Drama. 2 Police -- Pennsylvania -- Fiction 17 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings >