Sharing a meter, neighbors steal electricity, how to obtain evidence?

Take photos of all three watt-hour meters. If there is a date on the photo, take one every day. Your record are useless. Take pictures. Shoot for a month, then go to the police and take out the photos. By that time, everyone has figured out how to use electricity, and it will soon give the cloven foot.

After the liquidation, seal the watt-hour meter with the signature of the power supply department so that the wires can't be tampered with.