In this field, it is imperative you armor yourself with protection. You don't want to get hurt or leave yourself open for attacks of any sort. To do this you can use several techniques such as meditation, chanting, visualizing yourself enveloped in white light or by prayers. When approaching an investigation or if you feel you are being taunted by something sinister, the best thing to NOT do is fear it. Fear is food. The more you fear the more power you give a malevolent spirit.
These are some prayers that I have collected from various websites.
Protection Prayer (Visualize the white light surrounding you)
The Light of God surrounds me,
The Love of God enfolds me,
The Power of God protects me,
The Presence of God watches over me,
And, wherever I am, God is.
Prayer to St. Michael the Archangel
Saint Michael the Archangel,
Defend us in battle.
Be our protection against the wickedness
and snares of the devil.
May God rebuke him, we humbly pray.
And do though, O Prince of the heavenly host,
By the power of God, thrust into hell
Satan and all evil spirits
Who wander throughout the world
Seeking the ruin of souls.
Angel of God, My guardian dear, to whom His love commits me here: Ever this day (or night) Be at my side, To light and guard, To rule and guide. Amen.
Oh Jesus, full of grace and charity, victim for sinners, so impelled by your love of us that you willed to die on the cross, I humbly entreat thee to glorify in heaven and on earth, the Blessed, Padre Pio of Pietrelcina, who generously participated in your sufferings, who loved thee so much and laboured so faithfully for the glory of your heavenly Father and for the good of souls. With confidence, I beseech thee to grant me, through his intercession, the grace of which I ardently desire. 3 times Glory be the Father
Cloak of insulation (like attracts like)
"I am surrounded by the great all good of Totality; only good do I send out and only good do I receive."
Great Spirit Prayer
Oh, Great Spirit, whose voice I hear in the wind,
Whose breath gives life to all the world.
Hear me; I need your strength and wisdom.
Let me walk in beauty, and make my eyes ever behold the red and purple sunset.
Make my hands respect the things you have made and my ears sharp to hear your voice.
Make me wise so that I may understand the things you have taught my people.
Help me to remain calm and strong in the face of all that comes towards me.
Let me learn the lessons you have hidden in every leaf and rock.
Help me seek pure thoughts and act with the intention of helping others.
Help me find compassion without empathy overwhelming me.
I seek strength, not to be greater than my brother, but to fight my greatest enemy
Make me always ready to come to you with clean hands and straight eyes. So when life fades, as the fading sunset, my spirit may come to you without shame.
Other links about protection prayers