I've read on many pest control websites that if you catch a mouse in your home that they must be taken 1+ miles away, otherwise they will easily make their way back to their old home (ie. your house).

I live in a suburban street in an urban part of London. How could a mouse realistically find its way back to my house if I dumped it in the local park, 0.2 miles away?

Sources:

• http://www.mousetraps.org.uk/mouse-traps/Single-Catch-Live-Mouse-Trap _{(dead link)}

The unharmed mouse should then be taken 2 miles away from the house and released.

• http://pestkill.org/mice/home/

Mind that you should reveal mice at least 1 mile from your house because they can come back to the house easily.

• http://conversation.which.co.uk/energy-home/humane-pest-control-for-mice-infestations-at-home/

Humane, live-catch traps are something of a pain (mice have a homing instinct, so you have to release them miles away).