ANSWER:

This is not shirk.

The lie detector test is a scientific procedure where they determine if you are lying by the blood pressure, pulse rate etc and its not always accurate, hence its not shirk to believe in it or not.

I was watching a lie detector test and I watched the video and I believed the test tells the truth for a little bit but then I thought it may be against Islam so inside I started to convince myself that it doesn’t but my heart was still convinced that it does tell the truth. Is the shirk and will it affect my prayers for 40 days.

Shirk and its different forms | July 29, 2022 10:34 am
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Sheikh,some days ago a proposal came for marriage to me.groom’s mother recently said that, she told a pious man of their known Madrassah to do istikhara for them &then that pious man do istikhara & he saw if this marriage occurs groom’s father’s grave is getting broken..is that true authentic way of istikhara sheikh?