How can I catch a neighbor who is breaking into my wireless network? [duplicate]

How can I catch a neighbor who is breaking into my wireless network?
[duplicate]

This question already has an answer here:
How can I detect unauthorized access on my 802.11 g/n network? 2 answers
If I suspect that a neighbor is breaking into my home wireless network,
how can I try to "catch" them?
Specifics I'm wondering about:
collecting evidence of their unauthorized access
collecting evidence of any illegal activities they might using my internet
connection for
discovering the attacker's personal identity
discovering the attacker's physical location
Please note:
This is not a question about tightening network security. It it is
specifically about the case in which an attacker is bypassing reasonable
network security measures, whatever they may be.
This is not a question about detecting the mere occurrence of unauthorized
access. It is about collecting information that might be used to prove
specifically who has done what.