Contradiction with Proverbs 17:15
Proverbs 17:15 condemns justifying the wicked and condemning the just, whereas Lamentations 3:36 suggests that perverting justice for a person is against God's will.
Proverbs 17:15: He that justifieth the wicked, and he that condemneth the just, even they both [are] abomination to the LORD.
Contradiction with Isaiah 5:20
Isaiah 5:20 warns against calling evil good and good evil, contradicting Lamentations 3:36's message against subverting justice, which implies a similar distortion of truth and righteousness.
Isaiah 5:20: Woe unto them that call evil good, and good evil; that put darkness for light, and light for darkness; that put bitter for sweet, and sweet for bitter! [call...: Heb. say concerning evil, It is good, etc]
Contradiction with Habakkuk 1:13
Habakkuk 1:13 states that God cannot look on wrong, questioning why He tolerates treacherous dealings, while Lamentations 3:36 suggests God's disapproval of injustice.
Habakkuk 1:13: [Thou art] of purer eyes than to behold evil, and canst not look on iniquity: wherefore lookest thou upon them that deal treacherously, [and] holdest thy tongue when the wicked devoureth [the man that is] more righteous than he? [iniquity: or, grievance]
Contradiction with Proverbs 21:15
Proverbs 21:15 states that it is joy to the just to do judgment, which contrasts with Lamentations 3:36's lament over the perversion of a person's right and judgment.
Proverbs 21:15: [It is] joy to the just to do judgment: but destruction [shall be] to the workers of iniquity.