diff --git a/pbm-functional/pytest/Dockerfile-testinfra b/pbm-functional/pytest/Dockerfile-testinfra
index 33cdf513..5ea5b478 100644
--- a/pbm-functional/pytest/Dockerfile-testinfra
+++ b/pbm-functional/pytest/Dockerfile-testinfra
@@ -1,9 +1,12 @@
-FROM alpine
-RUN apk add --no-cache docker python3 py-pip bash git
+FROM python:bullseye
+RUN curl -s --location https://www.mongodb.org/static/pgp/libmongocrypt.asc | gpg --dearmor >/etc/apt/trusted.gpg.d/libmongocrypt.gpg && \
+    echo "deb https://libmongocrypt.s3.amazonaws.com/apt/debian bullseye/libmongocrypt/1.8 main" | tee /etc/apt/sources.list.d/libmongocrypt.list 
+RUN apt update -y && apt install -y docker.io bash git curl libmongocrypt-dev
 RUN pip install --no-cache-dir docker && \
     pip install --no-cache-dir pytest-testinfra && \
     pip install --no-cache-dir pytest-timeout && \
     pip install --no-cache-dir adaptavist==2.3.1 && \
     pip install --no-cache-dir pytest-adaptavist && \
-    pip install --no-cache-dir pymongo
+    pip install --no-cache-dir pymongo && \
+    pip install --no-cache-dir 'pymongo[encryption]'
 WORKDIR /test
diff --git a/pbm-functional/pytest/cluster.py b/pbm-functional/pytest/cluster.py
index dadbcda3..30736f20 100644
--- a/pbm-functional/pytest/cluster.py
+++ b/pbm-functional/pytest/cluster.py
@@ -6,7 +6,7 @@
 import copy
 import concurrent.futures
 import os
-from datetime import datetime
+from datetime import datetime, UTC
 import re
 
 # the structure of the cluster could be one of
@@ -791,7 +791,7 @@ def check_initsync(self):
 
     @staticmethod
     def log(*args, **kwargs):
-        print("[%s]" % (datetime.now()).strftime('%Y-%m-%dT%H:%M:%S'),*args, **kwargs)
+        print("[%s]" % (datetime.now(UTC)).strftime('%Y-%m-%dT%H:%M:%S'),*args, **kwargs)
 
     def delete_backup(self, name):
         n = testinfra.get_host("docker://" + self.pbm_cli)
diff --git a/pbm-functional/pytest/test_fle.py b/pbm-functional/pytest/test_fle.py
new file mode 100644
index 00000000..09407848
--- /dev/null
+++ b/pbm-functional/pytest/test_fle.py
@@ -0,0 +1,106 @@
+import pytest
+import pymongo
+import pymongo.encryption
+import bson
+import testinfra
+import time
+import os
+import docker
+
+from datetime import datetime
+from cluster import Cluster
+
+@pytest.fixture(scope="package")
+def docker_client():
+    return docker.from_env()
+
+@pytest.fixture(scope="package")
+def config():
+    return { "_id": "rs1", "members": [{"host":"rs101"},{"host": "rs102"},{"host": "rs103" }]}
+
+@pytest.fixture(scope="package")
+def cluster(config):
+    return Cluster(config)
+
+@pytest.fixture(scope="function")
+def start_cluster(cluster,request):
+    try:
+        cluster.destroy()
+        cluster.create()
+        cluster.setup_pbm()
+        yield True
+    finally:
+        if request.config.getoption("--verbose"):
+            cluster.get_logs()
+        cluster.destroy(cleanup_backups=True)
+
+@pytest.mark.timeout(300,func_only=True)
+def test_logical(start_cluster,cluster):
+    cluster.check_pbm_status()
+    local_master_key = os.urandom(96)
+    
+    # Use local KMS key
+    kms_providers = {"local": {"key": local_master_key}}
+
+    client = pymongo.MongoClient(cluster.connection)
+    coll = client.test.test
+
+    # Create keyVault collection
+    client["enc"]["test"].create_index(
+        "keyAltNames",
+        unique=True,
+        partialFilterExpression={"keyAltNames": {"$exists": True}},
+    )
+
+    # Create a clientEncryption instance
+    client_encryption = pymongo.encryption.ClientEncryption(
+        kms_providers,
+        "enc.test",
+        client,
+        coll.codec_options,
+    )
+
+    # Create a new data key for the encryptedField.
+    data_key_id = client_encryption.create_data_key(
+        "local", key_alt_names=["test"]
+    )
+
+    # Explicitly encrypt a field:
+    encrypted_field = client_encryption.encrypt(
+        "encrypted_field",
+        pymongo.encryption.Algorithm.AEAD_AES_256_CBC_HMAC_SHA_512_Deterministic,
+        key_id=data_key_id,
+    )
+
+    # Insert a doc with both encrypted and unencrypted fields
+    coll.insert_one({"encryptedField": encrypted_field, "unencryptedField": "unencrypted_field"})
+
+    # Perform a physical backup
+    backup=cluster.make_backup("physical")
+
+    # Close connections
+    client_encryption.close()
+    client.close()
+
+    # Drop key database
+    pymongo.MongoClient(cluster.connection).drop_database('enc')
+
+    # Make restore
+    cluster.make_restore(backup,restart_cluster=True, check_pbm_status=True)
+
+    # Reconnect 
+    client = pymongo.MongoClient(cluster.connection)
+    coll = client.test.test
+    client_encryption = pymongo.encryption.ClientEncryption(
+        kms_providers,
+        "enc.test",
+        client,
+        coll.codec_options,
+    )
+
+    # fetch the test doc and check
+    doc = coll.find_one()
+    Cluster.log("Encrypted document: %s" % (doc,))
+    assert doc["unencryptedField"] == "unencrypted_field"
+    assert doc["encryptedField"] != "encrypted_field"
+    assert client_encryption.decrypt(doc["encryptedField"]) == "encrypted_field"