[Home](./index.md) > [@digitalpersona/services](./services.md) > [PolicyElement](./services.policyelement.md) ## PolicyElement interface A single authentication policy element. Used to match against the policy.\\ The policy element is satisfied when a list of contains the [PolicyElement.cred\_id](./services.policyelement.cred_id.md). Signature: ```typescript export interface PolicyElement ``` ## Properties | Property | Type | Description | | --- | --- | --- | | [cred\_id](./services.policyelement.cred_id.md) | CredentialId | to match against a list of . |