diff --git a/omec/pcap-analyze/Dockerfile b/omec/pcap-analyze/Dockerfile
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+++ b/omec/pcap-analyze/Dockerfile
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+# Copyright 2020-present Open Networking Foundation
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+FROM python:3.8
+
+RUN pip install pyshark
+RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y tshark
+
+WORKDIR /app
+COPY ./pcap-analyze.py /app
+
+CMD python pcap-analyze.py capture.pcap
diff --git a/omec/pcap-analyze/pcap-analyze.py b/omec/pcap-analyze/pcap-analyze.py
new file mode 100644
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+++ b/omec/pcap-analyze/pcap-analyze.py
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+#!/usr/bin/env python3
+
+# Copyright 2020-present Open Networking Foundation
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This script iterates through packets captured in pcap file and maps UE IDs to
+# corresponding packet indices. Then for each UE it validates if the packet sequence
+# looks correct (e.g. including attach/detach request/accept etc.). Otherwise print
+# missing packets associtated with UE ID and IMSI.
+#
+# Usage: pcap-analyze.py xxx.pcap
+
+import sys
+import re
+import pyshark
+
+# Map from UE ID to packet index
+packetMap = {}
+# All the packets captured in pcap file
+captures = None
+
+def groupPacket(pkt, i):
+    if 's1ap' in pkt:
+        #ueId = pkt.s1ap.enb_ue_s1ap_id
+
+        # Looks like pyshark cannot handle packets with multiple sctp data chunks
+        # So use regex match as a workaround
+        ueIds = re.findall(r'ENB-UE-S1AP-ID: (\d+)', str(pkt))
+        for ueId in ueIds:
+            if not ueId in packetMap.keys():
+                packetMap[ueId] = []
+            packetMap[ueId].append(i)
+
+def validate(ueId, packets):
+    # Get IMSI value from the first packet (assuming it's attach request)
+    # Again using regex is a workaround as pyshark cannot handle multiple sctp data chunks
+
+    # FIXME: IMSI value could be wrong if the first packet is not attach request (e.g.
+    # when packet contains multiple sctp data chunks)
+    imsi = re.findall(r'IMSI: (\d+)', str(captures[packets[0]]))
+    # TODO: validate more attach/detach messages in addition to request and accept
+    for keyword in ['Attach request', 'Attach accept', 'Detach request', 'Detach accept']:
+        try:
+            assert any(keyword in str(captures[packet]) for packet in packets)
+        except Exception:
+            print('UE #{} (IMSI: {}): missing "{}"'.format(ueId, imsi, keyword))
+            break
+
+if __name__ == "__main__":
+    pcapFile = str(sys.argv[1])
+    captures = pyshark.FileCapture(pcapFile)
+    p = captures[0]
+    i = 0
+    # Extract UE ID for each packet and group packets with the same UE ID
+    while(p):
+        groupPacket(p, i)
+        try:
+            p = captures.next()
+        except Exception:
+            break
+        i += 1
+
+    # Check attach/detach packets for each UE
+    for ueId, packets in packetMap.items():
+        validate(ueId, packets)