Which source address shall I specify in a security policy on an FW configured with a source NAT policy

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Specify a private address (source address) in a security policy on an FW. The private address is the one that is used before source NAT is performed.
The FW matches packets with a security policy before enforcing a NAT policy. If the packets match the security policy, the FW performs source NAT for the packets. If the packets do not match the security policy, the FW discards the packets.

Other related questions:
Which destination address shall I specify in a security policy on an FW configured with NAT server
Specify a private address (destination address) in a security policy on an FW. The private address is the one used after NAT Server is performed. The FW matches packets with server-map entries before enforcing a security policy. After the FW translates destination addresses based on the server-map entries, the FW processes the packets based on the security policy.

Whether the source address specified in the security policy is the translated address when the source NAT policy is configured
The source address specified in the security policy is the address before NAT when the source NAT policy is configured. When the firewall translates an address in a packet, it searches for the interzone security policy. The firewall translates only the address that passes the security policy check and matches the conditions defined in the interzone policy. Therefore, the source address specified in the interzone security policy is the address before NAT, that is, the private IP address.

Specifying a pre-NAT or post-NAT address as the destination address in the interzone security policy when creating a NAT Server policy
Specifying a pre-NAT or post-NAT address as the destination address in the interzone security policy when creating a NAT Server policy You must specify the post-NAT address as the destination address in the policy. The security policy matching takes place after address translation. Therefore, the destination for the security policies to match must be a private IP address.

Method used to configure the security policy after the NAT policy is configured
After source NAT or destination NAT is configured, you can configure the security policy as follows: After source NAT is configured, configure the source IP address for packet filtering as the IP address before the NAT. After NAT Server, intrazone destination NAT, or SLB is configured, configure the destination IP address for packet filtering as the IP address after the NAT.

Does the FW process the audit policies and security policies in a specific order
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