Why did General Gage send British troops to Lexington and Concord in 1775?

There were two reasons why General Thomas Gage (who was
the governor of Massachusetts at the time) sent British troops to Lexington and Concord
in April of 1775.  Both had to do with the rebellion that was brewing in the colony at
the time.

First, Gage had heard that the Patriots had been
collecting weapons to use in a potential rebellion.  The Patriots were said to have
stored the weapons in Concord.  Gage sent troops to Concord to find and confiscate the
weapons.

Second, Gage felt that he would be able to capture
some Patriot leaders in this way.  He had heard that John Hancock and Samuel Adams were
hiding in Concord as well.

Gage sent the troops to Concord
for these two reasons.  Lexington was simply a town along the way to
Concord.