They compile statistics, perform inspections, write reports for highly engaged but small audiences on subjects such as bee-colony collapse.

WSJ: Demonstration Against Sequestration Has Reasons, but Few Rhymes

In 1994 Congress instructed the Justice Department to compile statistics and produce an annual report on the use of excessive force.

ECONOMIST: The police

The extent of the problem is hard to know as South African police do not compile corrective rape statistics separately from other rape cases.

CNN: Horror of South Africa's 'corrective rape'

However, Larkin did compile several noteworthy defensive statistics that have clearly caught the attention of the voters.

FORBES: Third Time's The Charm For Barry Larkin

The personal finance website nerdwallet.com recently aggregated the results of assorted statistics and surveys to compile a list of the ten worst big cities in the U.S. for drivers.

FORBES: Cities With The Most Frustrated Motorists

We trolled through government injury and death statistics, accident case reports and newspaper accounts of tragedies to compile a list of the ten most dangerous power tools.

FORBES: The Most Dangerous Power Tools