Is it permissible to take items, gifts, and gold from the husband's house if his money is illicit, and am I sinful if I do not respond to his attempts to communicate, knowing that he is wanted by the police?

Unlawful wealth is of two types: The first is taken without the owner's consent, such as stolen property. It is not permissible to consume this if it is still in its original form, though some scholars permitted consuming what was purchased with it. The second type is taken with the payer's consent, such as usurious gains. The preponderant opinion regarding this type is the permissibility of benefiting from it, as the unlawfulness is attached to the recipient's liability. The ruling on your taking the aforementioned items derives from the ruling on the money. You have the right to seek divorce if the husband generally earns from unlawful means, but you do not have the right to refuse to speak to him or prevent him from seeing his children.