Disguising criminal property falls within the core money laundering offences associated with concealing the origins or nature of illicit assets. Concealing covers conduct such as hiding, disguising, converting, transferring, or removing criminal property to make it appear legitimate or to prevent its detection, seizure, or confiscation. The key feature is dealing with the property in a way that obscures its true source, ownership, location, or movement. Failure to disclose is a separate offence that applies when a person in the regulated sector does not report knowledge or suspicion of money laundering to the appropriate internal or external reporting channel. Tipping off relates to informing a person that a report has been made or that an investigation is underway, potentially prejudicing an investigation. Arrangements refers to becoming involved in an arrangement which facilitates the acquisition, retention, use, or control of criminal property by or on behalf of another person. Because the question focuses specifically on disguising criminal property, the clearest and most direct offence is concealing.