They can sometimes be used internally, where the police cannot handle a situation.

Other systems are used only internally in a company or organization doing software development.

Brand language is also often used internally within a company.

From 1862 to 1879 gold and silver were not used internally.

There is another measure the Party uses internally as well.

They finished the first draft in 2003 though it was only used internally.

However, from then until 1967, a similar four-digit system was used internally.

The data provided has been gathered as management information, to be used internally in support of improvement planning and activities.

This sounds like it might be a good idea for Canonical to use internally.

I think there was some feeling in the army that it should not be used internally in the country.