policies.go

package main

import (
  "encoding/json"
	"fmt"
	"io/ioutil"
)

type Policy struct {
	Name  string
	Value string
}

type Policies struct {
	Policies []Policy
}

func main() {
	filename := "policies.json"
	jsonRaw, readErr := ioutil.ReadFile(filename)

	if readErr != nil {
		fmt.Println(readErr)
	}

	var policies Policies
	decodeErr := json.Unmarshal(jsonRaw, &policies)
	if decodeErr != nil {
		panic(decodeErr)
	}
	fmt.Println(policies);
}

policies.json

{
  "Policies": [
    {
  		"Name" : "Policy 1",
  		"Value": "foo"
  	},
  	{
  		"Name" : "Policy 2",
  		"Value": "bar"
  	}
  ]
}