please coreect my interpretations. thanks

0The following are my interpretations of several sentences.00 00Please correct them. Thanks advanced. 02br
01b001. To be sure, more research in real-world situations is needed to prove the effectiveness of the technology. And if other MRI usage is any indication, fMRI lie detection will be expensive to employ routinely and could require subjects to travel to specialized centers for testing.02b02br
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00“And if other MRI usage is any indication” means “if other MRI usage indicates the effectiveness of the technology”02br
01b002. Investigators of various stripes certainly want a reliable tool for getting at the truth.02b02br
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00Here “Investigators of various stripes” refers to “Investigators of various ranks”.02br
01b003. A person walks by, say, a gas station, consider how much money is in the till, who might be around to stop the theft, and what punishment awaits him if caught (including potential time off for good behavior).02b02br
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00Off = be off for something= to have particular amount of something02br
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00He considers potential time off for good behavior=He considers how much time he may have for good behavior if caught. 02br
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00I’m puzzled that what exactly “the time he may have for good behavior” refers to.00 00My guess is that it refers to “how long he might be in prison as punishment” or “prison term’.02br
01b004.It's clear that we have an incredible ability to rationalize our dishonesty and that justifying it becomes substantially easier when cheating is one step removed from cash. 02b02br
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00Here “when cheating is one step removed from cash” means “when the cheating is connected with money” or “when cheating is the last step for you to get the cash”. Which one is more correct?0-