[Avodah] was this ok?

[saul newman]

sent this to the other list, but they felt that these are legitimate
halachic issues.....

heard that in town a donor noted, after giving a check that his iDevice
was missing. using the built in tracking capability, he was able to
locate it across town, and confronted the denying culprit by ringing
the number of the device, which was 'pores the simlah'. he demanded and
received his device and his check.

questions

1] were tracking devices in the bans

2] is it muttar to use such technology to recover a stolen device, when
the perp might be embarrassed [as in this case where the individual
denied before the ringer went off]

3] while i assume it's muttar to take back ones borrowed tech device,
what about the check-- what halachic parameter would allow him to ask
for his money back

4] would it be allowed to turn him into the police? could he? should he?

5] is there any hetter to tell anyone?

weren't there always stories from the alter heim about the local goniff?
did those ganovim steal from jews or from others?