2. Cops of New York
A criminal investigation…
… and a maths investigation

3. With Officer Dibble and friends…

4. How to watch the streets of New York… and catch Big Al?
How many cops do we need..?

5. Al Capone… his mum and his gunmen Louis Clementi and Philip Mangano

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2 cops to watch 1 block…

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3 cops to watch 2 blocks…

10. How many cops to watch 3 blocks… 4 blocks… ?

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4 cops to watch 3 blocks…

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15. Blocks
Cops

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Cops

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Cops