Deuteronomy 17:4

If word of this comes to your ears, then let this thing be looked into with care, and if there is no doubt that it is true, and such evil has been done in Israel;

Deuteronomy 13:12-14

And if word comes to you, in one of the towns which the Lord your God is giving you for your resting-place,

Deuteronomy 19:18

And the judges will have the question looked into with care: and if the witness is seen to be false and to have made a false statement against his brother,

Proverbs 25:2

It is the glory of God to keep a thing secret: but the glory of kings is to have it searched out.

John 7:51

Is a man judged by our law before it has given him a hearing and has knowledge of what he has done?

Treasury of Scripture Knowledge

Summary

And it be told thee, and thou hast heard of it, and inquired diligently, and, behold, it be true, and the thing certain, that such abomination is wrought in Israel:

General references

Bible References

Inquired

Deuteronomy 13:12
And if word comes to you, in one of the towns which the Lord your God is giving you for your resting-place,
Deuteronomy 19:18
And the judges will have the question looked into with care: and if the witness is seen to be false and to have made a false statement against his brother,
Proverbs 25:2
It is the glory of God to keep a thing secret: but the glory of kings is to have it searched out.
John 7:51
Is a man judged by our law before it has given him a hearing and has knowledge of what he has done?

General references

Deuteronomy 13:14
Then let a full search be made, and let questions be put with care; and if it is true and certain that such a disgusting thing has been done among you;

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain